From 00181783a45f907515d2b1afe494a0fca263eb7c Mon Sep 17 00:00:00 2001
From: Yash Verma <114978813+Rajput-xv@users.noreply.github.com>
Date: Wed, 19 Jun 2024 11:54:22 +0530
Subject: [PATCH] added back button on different pages

---
 src/components/page3/1Year.js             | 21 ++++++++++++++++++++
 src/components/page3/2Year.js             | 22 +++++++++++++++++++++
 src/components/page3/3Year.js             | 22 +++++++++++++++++++++
 src/components/page3/4Year.js             | 21 ++++++++++++++++++++
 src/components/page4/lecture.js           | 21 ++++++++++++++++++++
 src/components/page4/pyq.js               | 22 +++++++++++++++++++++
 src/components/page4/timetable.js         | 24 +++++++++++++++++++++--
 src/components/page4/trdquantum.js        | 21 ++++++++++++++++++++
 src/components/page5(1st)/fstlecture.js   | 23 ++++++++++++++++++++++
 src/components/page5(1st)/fstpyq.js       | 21 ++++++++++++++++++++
 src/components/page5(1st)/fstquantum.js   | 23 +++++++++++++++++++++-
 src/components/page5(1st)/fstsyllabus.js  | 21 ++++++++++++++++++++
 src/components/page5(1st)/fsttimetable.js | 23 ++++++++++++++++++++++
 src/components/page6(2nd)/sndlecture.js   | 21 ++++++++++++++++++++
 src/components/page6(2nd)/sndquantum.js   | 21 ++++++++++++++++++++
 src/components/page6(2nd)/sndsyllabus.js  | 21 ++++++++++++++++++++
 src/components/page7(4yr)/frthsyllabus.js | 22 ++++++++++++++++++++-
 src/components/page8(3yr)/trdsyllabus.js  | 21 ++++++++++++++++++++
 18 files changed, 387 insertions(+), 4 deletions(-)

diff --git a/src/components/page3/1Year.js b/src/components/page3/1Year.js
index 92e1822..01aa26b 100644
--- a/src/components/page3/1Year.js
+++ b/src/components/page3/1Year.js
@@ -12,6 +12,27 @@ function fstYear() {
   return (
 <div>
 
+<Link to="/" className="back-icon" style={{ position: 'absolute', top: '75px !important', left: '35px', fontSize: '42px' }}>
+  <svg 
+    xmlns="http://www.w3.org/2000/svg" 
+    width="42" 
+    height="42" 
+    fill="currentColor" 
+    viewBox="0 0 16 16" 
+    style={{ 
+      fontWeight: 'bold',
+      position: 'fixed', 
+      top: 139, 
+      left: 20
+    }}
+  >
+    <path 
+      fillRule="evenodd" 
+      d="M1 8a7 7 0 1 0 14 0A7 7 0 0 0 1 8m15 0A8 8 0 1 1 0 8a8 8 0 0 1 16 0m-4.5-.5a.5.5 0 0 1 0 1H5.707l2.147 2.146a.5.5 0 0 1-.708.708l-3-3a.5.5 0 0 1 0-.708l3-3a.5.5 0 1 1 .708.708L5.707 7.5z"
+    />
+  </svg>
+</Link>
+
 <Header/>
   <div class="background">
   <div className="yr">
diff --git a/src/components/page3/2Year.js b/src/components/page3/2Year.js
index 3b842c8..3475e74 100644
--- a/src/components/page3/2Year.js
+++ b/src/components/page3/2Year.js
@@ -11,6 +11,28 @@ import youtube from "../../assets/icons8-youtube-64.png";
 function sndYear() {
   return (
     <div>
+
+<Link to="/" className="back-icon" style={{ position: 'absolute', top: '75px !important', left: '35px', fontSize: '42px' }}>
+  <svg 
+    xmlns="http://www.w3.org/2000/svg" 
+    width="42" 
+    height="42" 
+    fill="currentColor" 
+    viewBox="0 0 16 16" 
+    style={{ 
+      fontWeight: 'bold',
+      position: 'fixed', 
+      top: 139, 
+      left: 20
+    }}
+  >
+    <path 
+      fillRule="evenodd" 
+      d="M1 8a7 7 0 1 0 14 0A7 7 0 0 0 1 8m15 0A8 8 0 1 1 0 8a8 8 0 0 1 16 0m-4.5-.5a.5.5 0 0 1 0 1H5.707l2.147 2.146a.5.5 0 0 1-.708.708l-3-3a.5.5 0 0 1 0-.708l3-3a.5.5 0 1 1 .708.708L5.707 7.5z"
+    />
+  </svg>
+</Link>
+
     <Header/>
 <div className='background'>
     <div className="yr">
diff --git a/src/components/page3/3Year.js b/src/components/page3/3Year.js
index 27322ad..c55d1eb 100644
--- a/src/components/page3/3Year.js
+++ b/src/components/page3/3Year.js
@@ -14,6 +14,28 @@ function TrdYear() {
 
   return (
     <div>
+
+<Link to="/" className="back-icon" style={{ position: 'absolute', top: '75px !important', left: '35px', fontSize: '42px' }}>
+  <svg 
+    xmlns="http://www.w3.org/2000/svg" 
+    width="42" 
+    height="42" 
+    fill="currentColor" 
+    viewBox="0 0 16 16" 
+    style={{ 
+      fontWeight: 'bold',
+      position: 'fixed', 
+      top: 139, 
+      left: 20
+    }}
+  >
+    <path 
+      fillRule="evenodd" 
+      d="M1 8a7 7 0 1 0 14 0A7 7 0 0 0 1 8m15 0A8 8 0 1 1 0 8a8 8 0 0 1 16 0m-4.5-.5a.5.5 0 0 1 0 1H5.707l2.147 2.146a.5.5 0 0 1-.708.708l-3-3a.5.5 0 0 1 0-.708l3-3a.5.5 0 1 1 .708.708L5.707 7.5z"
+    />
+  </svg>
+</Link>
+
       <Header/>
   <div class="background">
       <div className="yr">
diff --git a/src/components/page3/4Year.js b/src/components/page3/4Year.js
index b0bffe3..2ef57ef 100644
--- a/src/components/page3/4Year.js
+++ b/src/components/page3/4Year.js
@@ -18,6 +18,27 @@ function fothYear() {
     return (
   <div>
 
+<Link to="/" className="back-icon" style={{ position: 'absolute', top: '75px !important', left: '35px', fontSize: '42px' }}>
+  <svg 
+    xmlns="http://www.w3.org/2000/svg" 
+    width="42" 
+    height="42" 
+    fill="currentColor" 
+    viewBox="0 0 16 16" 
+    style={{ 
+      fontWeight: 'bold',
+      position: 'fixed', 
+      top: 139, 
+      left: 20
+    }}
+  >
+    <path 
+      fillRule="evenodd" 
+      d="M1 8a7 7 0 1 0 14 0A7 7 0 0 0 1 8m15 0A8 8 0 1 1 0 8a8 8 0 0 1 16 0m-4.5-.5a.5.5 0 0 1 0 1H5.707l2.147 2.146a.5.5 0 0 1-.708.708l-3-3a.5.5 0 0 1 0-.708l3-3a.5.5 0 1 1 .708.708L5.707 7.5z"
+    />
+  </svg>
+</Link>
+
   <Header/>
     
     <div className="yr">
diff --git a/src/components/page4/lecture.js b/src/components/page4/lecture.js
index 146f8a1..409d063 100644
--- a/src/components/page4/lecture.js
+++ b/src/components/page4/lecture.js
@@ -13,6 +13,7 @@ import se from '../../assets/se.jpg';
 import bd from '../../assets/bd.jpg';
 import {FaMagnifyingGlass } from 'react-icons/fa6'
 import NoResultsFound from '../noResultsFound/index.js'
+import {Link} from 'react-router-dom';
 
 function Lecture() {
   // State for search query
@@ -40,6 +41,26 @@ function Lecture() {
 
   return (
     <div>
+      <Link to="/trdyear" className="back-icon" style={{ position: 'absolute', top: '75px !important', left: '35px', fontSize: '42px' }}>
+        <svg 
+          xmlns="http://www.w3.org/2000/svg" 
+          width="42" 
+          height="42" 
+          fill="currentColor" 
+          viewBox="0 0 16 16" 
+          style={{ 
+            fontWeight: 'bold',
+            position: 'fixed', 
+            top: 139, 
+            left: 20
+          }}
+        >
+          <path 
+            fillRule="evenodd" 
+            d="M1 8a7 7 0 1 0 14 0A7 7 0 0 0 1 8m15 0A8 8 0 1 1 0 8a8 8 0 0 1 16 0m-4.5-.5a.5.5 0 0 1 0 1H5.707l2.147 2.146a.5.5 0 0 1-.708.708l-3-3a.5.5 0 0 1 0-.708l3-3a.5.5 0 1 1 .708.708L5.707 7.5z"
+          />
+        </svg>
+      </Link>
       <Header />
       <div className="lecturetrd">
         <h1>Lecture</h1>
diff --git a/src/components/page4/pyq.js b/src/components/page4/pyq.js
index 25481fe..1db72f4 100644
--- a/src/components/page4/pyq.js
+++ b/src/components/page4/pyq.js
@@ -3,6 +3,7 @@ import { useParams } from 'react-router-dom';
 import Header from "../../pages/header";
 import Footer from "../../pages/footer";
 import './Pyq.css'; 
+import {Link} from 'react-router-dom';
 
 function Pyq() {
   const yearFiles = [
@@ -81,9 +82,30 @@ function Pyq() {
   const { id } = useParams(); 
   const yearItem = yearFiles.find((item) => item.year === id);
   const [selectedSemester, setSelectedSemester] = useState(null);
+  const yearLink={"1st":"/fstyear","2nd":"/sndyear","3rd":"/trdyear","4th":"/fothyear"};
 
   return (
     <div className="page-container">
+      <Link to={yearLink[yearItem.year]} className="back-icon" style={{ position: 'absolute', top: '75px !important', left: '35px', fontSize: '42px' }}>
+        <svg 
+          xmlns="http://www.w3.org/2000/svg" 
+          width="42" 
+          height="42" 
+          fill="currentColor" 
+          viewBox="0 0 16 16" 
+          style={{ 
+            fontWeight: 'bold',
+            position: 'fixed', 
+            top: 130, 
+            left: 20
+          }}
+        >
+          <path 
+            fillRule="evenodd" 
+            d="M1 8a7 7 0 1 0 14 0A7 7 0 0 0 1 8m15 0A8 8 0 1 1 0 8a8 8 0 0 1 16 0m-4.5-.5a.5.5 0 0 1 0 1H5.707l2.147 2.146a.5.5 0 0 1-.708.708l-3-3a.5.5 0 0 1 0-.708l3-3a.5.5 0 1 1 .708.708L5.707 7.5z"
+          />
+        </svg>
+      </Link>
       <Header />
       <div className="container-pyq">
         <h2 className='head'>Download Previous Year Questions</h2>
diff --git a/src/components/page4/timetable.js b/src/components/page4/timetable.js
index 84d1a16..0d1bbc7 100644
--- a/src/components/page4/timetable.js
+++ b/src/components/page4/timetable.js
@@ -2,6 +2,7 @@ import React, {useState} from 'react'
 import Imgdata from '../imgdata';
 import '../page4/timetable.css';
 import Header from "../../pages/header.js"
+import {Link} from 'react-router-dom';
 function Timetable() {
 
     const [selectedSection, setSelectedSection] = useState(null);
@@ -11,12 +12,31 @@ function Timetable() {
 
   return (
     <div>
-       
+       <Link to="/trdyear" className="back-icon" style={{ position: 'absolute', top: '75px !important', left: '35px', fontSize: '42px' }}>
+        <svg 
+          xmlns="http://www.w3.org/2000/svg" 
+          width="42" 
+          height="42" 
+          fill="currentColor" 
+          viewBox="0 0 16 16" 
+          style={{ 
+            fontWeight: 'bold',
+            position: 'fixed', 
+            top: 139, 
+            left: 20
+          }}
+        >
+          <path 
+            fillRule="evenodd" 
+            d="M1 8a7 7 0 1 0 14 0A7 7 0 0 0 1 8m15 0A8 8 0 1 1 0 8a8 8 0 0 1 16 0m-4.5-.5a.5.5 0 0 1 0 1H5.707l2.147 2.146a.5.5 0 0 1-.708.708l-3-3a.5.5 0 0 1 0-.708l3-3a.5.5 0 1 1 .708.708L5.707 7.5z"
+          />
+        </svg>
+      </Link>
        <Header/>
 
        <div className="trdyr">
       <center>
-        <h3> 3rd year timea table</h3>
+        <h3> 3rd year time table</h3>
         </center>
      </div>
 
diff --git a/src/components/page4/trdquantum.js b/src/components/page4/trdquantum.js
index 6b811d4..71c745f 100644
--- a/src/components/page4/trdquantum.js
+++ b/src/components/page4/trdquantum.js
@@ -11,6 +11,7 @@ import Imgwt from '../../assets/wt.png';
 import Imgitcs from '../../assets/itcsimg.jpg';
 import {FaMagnifyingGlass } from 'react-icons/fa6'
 import NoResultsFound from '../noResultsFound/index.js'
+import {Link} from 'react-router-dom';
 const quantumBooks = [
   { img: Imgcd, title: "Compiler Design", file: "cd" },
   { img: Imgda, title: "Data Analytics", file: "DataAnalytics" },
@@ -50,6 +51,26 @@ function Quantum() {
 
   return (
     <div>
+      <Link to="/trdyear" className="back-icon" style={{ position: 'absolute', top: '75px !important', left: '35px', fontSize: '42px' }}>
+        <svg 
+          xmlns="http://www.w3.org/2000/svg" 
+          width="42" 
+          height="42" 
+          fill="currentColor" 
+          viewBox="0 0 16 16" 
+          style={{ 
+            fontWeight: 'bold',
+            position: 'fixed', 
+            top: 139, 
+            left: 20
+          }}
+        >
+          <path 
+            fillRule="evenodd" 
+            d="M1 8a7 7 0 1 0 14 0A7 7 0 0 0 1 8m15 0A8 8 0 1 1 0 8a8 8 0 0 1 16 0m-4.5-.5a.5.5 0 0 1 0 1H5.707l2.147 2.146a.5.5 0 0 1-.708.708l-3-3a.5.5 0 0 1 0-.708l3-3a.5.5 0 1 1 .708.708L5.707 7.5z"
+          />
+        </svg>
+      </Link>
       <Header />
       <div style={{ overflow: "auto" }}>
         <div className="quantum-head">
diff --git a/src/components/page5(1st)/fstlecture.js b/src/components/page5(1st)/fstlecture.js
index 7e4d623..b2288be 100644
--- a/src/components/page5(1st)/fstlecture.js
+++ b/src/components/page5(1st)/fstlecture.js
@@ -2,6 +2,7 @@ import React, { useState } from 'react';
 import Header from '../../pages/header';
 import './fstlecture.css';
 import NoResultsFound from '../noResultsFound/index.js'
+import {Link} from 'react-router-dom';
 
 // Import images
 import ec from '../../assets/ec.jpg';
@@ -46,6 +47,28 @@ function Lecture() {
 
   return (
     <div>
+
+      <Link to="/fstyear" className="back-icon" style={{ position: 'absolute', top: '75px !important', left: '35px', fontSize: '42px' }}>
+        <svg 
+          xmlns="http://www.w3.org/2000/svg" 
+          width="42" 
+          height="42" 
+          fill="currentColor" 
+          viewBox="0 0 16 16" 
+          style={{ 
+            fontWeight: 'bold',
+            position: 'fixed', 
+            top: 139, 
+            left: 20
+          }}
+        >
+          <path 
+            fillRule="evenodd" 
+            d="M1 8a7 7 0 1 0 14 0A7 7 0 0 0 1 8m15 0A8 8 0 1 1 0 8a8 8 0 0 1 16 0m-4.5-.5a.5.5 0 0 1 0 1H5.707l2.147 2.146a.5.5 0 0 1-.708.708l-3-3a.5.5 0 0 1 0-.708l3-3a.5.5 0 1 1 .708.708L5.707 7.5z"
+          />
+        </svg>
+      </Link>
+
       <Header />
       <div className="lecturetrd">
         <h1>1st year lecture</h1>
diff --git a/src/components/page5(1st)/fstpyq.js b/src/components/page5(1st)/fstpyq.js
index f4ad9c4..5952822 100644
--- a/src/components/page5(1st)/fstpyq.js
+++ b/src/components/page5(1st)/fstpyq.js
@@ -1,11 +1,32 @@
 import React from 'react'
 import ComingSoon from '../../pages/cs.js';
 import Header from '../../pages/header.js';
+import {Link} from 'react-router-dom';
 
 
 function fstpyq() {
   return (
     <div>
+       <Link to="/fstyear" className="back-icon" style={{ position: 'absolute', top: '75px !important', left: '35px', fontSize: '42px' }}>
+        <svg 
+          xmlns="http://www.w3.org/2000/svg" 
+          width="42" 
+          height="42" 
+          fill="currentColor" 
+          viewBox="0 0 16 16" 
+          style={{ 
+            fontWeight: 'bold',
+            position: 'fixed', 
+            top: 130, 
+            left: 20
+          }}
+        >
+          <path 
+            fillRule="evenodd" 
+            d="M1 8a7 7 0 1 0 14 0A7 7 0 0 0 1 8m15 0A8 8 0 1 1 0 8a8 8 0 0 1 16 0m-4.5-.5a.5.5 0 0 1 0 1H5.707l2.147 2.146a.5.5 0 0 1-.708.708l-3-3a.5.5 0 0 1 0-.708l3-3a.5.5 0 1 1 .708.708L5.707 7.5z"
+          />
+        </svg>
+      </Link>
        <Header />
        <ComingSoon/>
     </div>
diff --git a/src/components/page5(1st)/fstquantum.js b/src/components/page5(1st)/fstquantum.js
index 21429d4..b10cb04 100644
--- a/src/components/page5(1st)/fstquantum.js
+++ b/src/components/page5(1st)/fstquantum.js
@@ -11,7 +11,8 @@ import Imgchem from '../../assets/chemistry.webp';
 import Imgmath2 from '../../assets/math2.jpg';
 import Imgelectronics from '../../assets/electronics.png';
 import Imgmech from '../../assets/mechanical.jpg';
-import {FaMagnifyingGlass } from 'react-icons/fa6'
+import {FaMagnifyingGlass } from 'react-icons/fa6';
+import {Link} from 'react-router-dom';
 
 const books = [
   { img: Imgphy, title: "Engineering Physics", file: "physics" },
@@ -53,6 +54,26 @@ function Quantum() {
 
   return (
     <div>
+      <Link to="/fstyear" className="back-icon" style={{ position: 'absolute', top: '75px !important', left: '35px', fontSize: '42px' }}>
+        <svg 
+          xmlns="http://www.w3.org/2000/svg" 
+          width="42" 
+          height="42" 
+          fill="currentColor" 
+          viewBox="0 0 16 16" 
+          style={{ 
+            fontWeight: 'bold',
+            position: 'fixed', 
+            top: 130, 
+            left: 20
+          }}
+        >
+          <path 
+            fillRule="evenodd" 
+            d="M1 8a7 7 0 1 0 14 0A7 7 0 0 0 1 8m15 0A8 8 0 1 1 0 8a8 8 0 0 1 16 0m-4.5-.5a.5.5 0 0 1 0 1H5.707l2.147 2.146a.5.5 0 0 1-.708.708l-3-3a.5.5 0 0 1 0-.708l3-3a.5.5 0 1 1 .708.708L5.707 7.5z"
+          />
+        </svg>
+      </Link>
       <Header />
       <div>
         <h2 className="quantum-head">1st year quantum book</h2>
diff --git a/src/components/page5(1st)/fstsyllabus.js b/src/components/page5(1st)/fstsyllabus.js
index 69f63bc..d344479 100644
--- a/src/components/page5(1st)/fstsyllabus.js
+++ b/src/components/page5(1st)/fstsyllabus.js
@@ -2,6 +2,7 @@ import React  from 'react'
 import Header from "../../pages/header";
 import Footer from "../../pages/footer";
 import '../page4/syllabus.css';
+import {Link} from 'react-router-dom';
 
 
 const fstsyllabus =() => {
@@ -20,6 +21,26 @@ const fstsyllabus =() => {
     }
   return (
     <div>
+        <Link to="/fstyear" className="back-icon" style={{ position: 'absolute', top: '75px !important', left: '35px', fontSize: '42px' }}>
+          <svg 
+            xmlns="http://www.w3.org/2000/svg" 
+            width="42" 
+            height="42" 
+            fill="currentColor" 
+            viewBox="0 0 16 16" 
+            style={{ 
+              fontWeight: 'bold',
+              position: 'fixed', 
+              top: 130, 
+              left: 20
+            }}
+          >
+            <path 
+              fillRule="evenodd" 
+              d="M1 8a7 7 0 1 0 14 0A7 7 0 0 0 1 8m15 0A8 8 0 1 1 0 8a8 8 0 0 1 16 0m-4.5-.5a.5.5 0 0 1 0 1H5.707l2.147 2.146a.5.5 0 0 1-.708.708l-3-3a.5.5 0 0 1 0-.708l3-3a.5.5 0 1 1 .708.708L5.707 7.5z"
+            />
+          </svg>
+        </Link>
         <Header/>
          <h2 className='head'> Download Syllabus</h2>
          
diff --git a/src/components/page5(1st)/fsttimetable.js b/src/components/page5(1st)/fsttimetable.js
index ebc1477..b055f82 100644
--- a/src/components/page5(1st)/fsttimetable.js
+++ b/src/components/page5(1st)/fsttimetable.js
@@ -3,6 +3,7 @@ import Imgdata from '../imgdata';
 import '../page4/timetable.css';
 import Header from "../../pages/header.js"
 import ComingSoon from '../../pages/cs.js';
+import {Link} from 'react-router-dom';
 
 function  Fsttimetable() {
 
@@ -13,6 +14,28 @@ function  Fsttimetable() {
 
   return (
     <div>
+
+      <Link to="/fstyear" className="back-icon" style={{ position: 'absolute', top: '75px !important', left: '35px', fontSize: '42px' }}>
+        <svg 
+          xmlns="http://www.w3.org/2000/svg" 
+          width="42" 
+          height="42" 
+          // fill="currentColor" when page is developed uncomment this line.
+          fill="white" //comment this when page is developed
+          viewBox="0 0 16 16" 
+          style={{ 
+            fontWeight: 'bold',
+            position: 'fixed', 
+            top: 130, 
+            left: 20
+          }}
+        >
+          <path 
+            fillRule="evenodd" 
+            d="M1 8a7 7 0 1 0 14 0A7 7 0 0 0 1 8m15 0A8 8 0 1 1 0 8a8 8 0 0 1 16 0m-4.5-.5a.5.5 0 0 1 0 1H5.707l2.147 2.146a.5.5 0 0 1-.708.708l-3-3a.5.5 0 0 1 0-.708l3-3a.5.5 0 1 1 .708.708L5.707 7.5z"
+          />
+        </svg>
+      </Link>
        
        <Header/>
 
diff --git a/src/components/page6(2nd)/sndlecture.js b/src/components/page6(2nd)/sndlecture.js
index 61285a3..ef6616e 100644
--- a/src/components/page6(2nd)/sndlecture.js
+++ b/src/components/page6(2nd)/sndlecture.js
@@ -14,6 +14,7 @@ import Imgos from '../../assets/los.jpg';
 import Imgtafl from '../../assets/ltafl.jpg';
 import ssii from '../../assets/ssii.jpg';
 import {FaMagnifyingGlass } from 'react-icons/fa6'
+import {Link} from 'react-router-dom';
 
 const lectures = [
   { img: Imgmath4, title: "Engineering Mathematics-4", link: "https://www.youtube.com/watch?v=14bNduEh9ag&list=PL5Dqs90qDljXYjZ8kDHtpMqPGKNGb2dxu" },
@@ -44,6 +45,26 @@ function SndLecture() {
 
   return (
     <div>
+      <Link to="/sndyear" className="back-icon" style={{ position: 'absolute', top: '75px !important', left: '35px', fontSize: '42px' }}>
+        <svg 
+          xmlns="http://www.w3.org/2000/svg" 
+          width="42" 
+          height="42" 
+          fill="currentColor" 
+          viewBox="0 0 16 16" 
+          style={{ 
+            fontWeight: 'bold',
+            position: 'fixed', 
+            top: 139, 
+            left: 20
+          }}
+        >
+          <path 
+            fillRule="evenodd" 
+            d="M1 8a7 7 0 1 0 14 0A7 7 0 0 0 1 8m15 0A8 8 0 1 1 0 8a8 8 0 0 1 16 0m-4.5-.5a.5.5 0 0 1 0 1H5.707l2.147 2.146a.5.5 0 0 1-.708.708l-3-3a.5.5 0 0 1 0-.708l3-3a.5.5 0 1 1 .708.708L5.707 7.5z"
+          />
+        </svg>
+      </Link>
       <Header />
       <div className="lecturetrd">
         <h1>2nd year lecture</h1>
diff --git a/src/components/page6(2nd)/sndquantum.js b/src/components/page6(2nd)/sndquantum.js
index edc614e..f0cc7b4 100644
--- a/src/components/page6(2nd)/sndquantum.js
+++ b/src/components/page6(2nd)/sndquantum.js
@@ -16,6 +16,7 @@ import Imgos from '../../assets/os.jpg';
 import Imgtafl from '../../assets/autometa.png';
 import {FaMagnifyingGlass } from 'react-icons/fa6'
 import { FilterBAndW } from '@mui/icons-material';
+import {Link} from 'react-router-dom';
 
 const books = [
   { img: Imgmath4, title: "Engineering Math4", file: "Mathematics4" },
@@ -57,6 +58,26 @@ function SndQuantum() {
 
   return (
     <div>
+      <Link to="/sndyear" className="back-icon" style={{ position: 'absolute', top: '75px !important', left: '35px', fontSize: '42px' }}>
+        <svg 
+          xmlns="http://www.w3.org/2000/svg" 
+          width="42" 
+          height="42" 
+          fill="currentColor" 
+          viewBox="0 0 16 16" 
+          style={{ 
+            fontWeight: 'bold',
+            position: 'fixed',
+            top: 130, 
+            left: 20
+          }}
+        >
+          <path 
+            fillRule="evenodd" 
+            d="M1 8a7 7 0 1 0 14 0A7 7 0 0 0 1 8m15 0A8 8 0 1 1 0 8a8 8 0 0 1 16 0m-4.5-.5a.5.5 0 0 1 0 1H5.707l2.147 2.146a.5.5 0 0 1-.708.708l-3-3a.5.5 0 0 1 0-.708l3-3a.5.5 0 1 1 .708.708L5.707 7.5z"
+          />
+        </svg>
+      </Link>
       <Header />
       <div style={{ overflow: "auto" }}>
         <h2 className="quantum-head">2nd year quantum book</h2>
diff --git a/src/components/page6(2nd)/sndsyllabus.js b/src/components/page6(2nd)/sndsyllabus.js
index 76893f3..60d472d 100644
--- a/src/components/page6(2nd)/sndsyllabus.js
+++ b/src/components/page6(2nd)/sndsyllabus.js
@@ -2,6 +2,7 @@ import React  from 'react'
 import Header from "../../pages/header";
 import Footer from "../../pages/footer";
 import '../page4/syllabus.css';
+import {Link} from 'react-router-dom';
 
 
 const Syllabus =() => {
@@ -20,6 +21,26 @@ const Syllabus =() => {
     }
   return (
     <div>
+        <Link to="/sndyear" className="back-icon" style={{ position: 'absolute', top: '75px !important', left: '35px', fontSize: '42px' }}>
+          <svg 
+            xmlns="http://www.w3.org/2000/svg" 
+            width="42" 
+            height="42" 
+            fill="currentColor" 
+            viewBox="0 0 16 16" 
+            style={{ 
+              fontWeight: 'bold',
+              position: 'fixed',
+              top: 139, 
+              left: 20
+            }}
+          >
+            <path 
+              fillRule="evenodd" 
+              d="M1 8a7 7 0 1 0 14 0A7 7 0 0 0 1 8m15 0A8 8 0 1 1 0 8a8 8 0 0 1 16 0m-4.5-.5a.5.5 0 0 1 0 1H5.707l2.147 2.146a.5.5 0 0 1-.708.708l-3-3a.5.5 0 0 1 0-.708l3-3a.5.5 0 1 1 .708.708L5.707 7.5z"
+            />
+          </svg>
+        </Link>
         <Header/>
 
 
diff --git a/src/components/page7(4yr)/frthsyllabus.js b/src/components/page7(4yr)/frthsyllabus.js
index 9c0caf3..f8fbb15 100644
--- a/src/components/page7(4yr)/frthsyllabus.js
+++ b/src/components/page7(4yr)/frthsyllabus.js
@@ -2,7 +2,7 @@ import React  from 'react'
 import Header from "../../pages/header";
 import Footer from "../../pages/footer";
 import '../page4/syllabus.css';
-
+import {Link} from 'react-router-dom';
 
 const frthsyllabus =() => {
 
@@ -20,6 +20,26 @@ const frthsyllabus =() => {
     }
   return (
     <div>
+      <Link to="/fothyear" className="back-icon" style={{ position: 'absolute', top: '75px !important', left: '35px', fontSize: '42px' }}>
+        <svg 
+          xmlns="http://www.w3.org/2000/svg" 
+          width="42" 
+          height="42" 
+          fill="currentColor" 
+          viewBox="0 0 16 16" 
+          style={{ 
+            fontWeight: 'bold',
+            position: 'fixed', 
+            top: 139, 
+            left: 20
+          }}
+        >
+          <path 
+            fillRule="evenodd" 
+            d="M1 8a7 7 0 1 0 14 0A7 7 0 0 0 1 8m15 0A8 8 0 1 1 0 8a8 8 0 0 1 16 0m-4.5-.5a.5.5 0 0 1 0 1H5.707l2.147 2.146a.5.5 0 0 1-.708.708l-3-3a.5.5 0 0 1 0-.708l3-3a.5.5 0 1 1 .708.708L5.707 7.5z"
+          />
+        </svg>
+      </Link>
         <Header/>
 
 
diff --git a/src/components/page8(3yr)/trdsyllabus.js b/src/components/page8(3yr)/trdsyllabus.js
index 2e4ebb3..fe6bc64 100644
--- a/src/components/page8(3yr)/trdsyllabus.js
+++ b/src/components/page8(3yr)/trdsyllabus.js
@@ -2,6 +2,7 @@ import React  from 'react'
 import Header from "../../pages/header";
 import Footer from "../../pages/footer";
 import '../page4/syllabus.css';
+import {Link} from 'react-router-dom';
 
 
 const trdsyllabus =() => {
@@ -20,6 +21,26 @@ const trdsyllabus =() => {
     }
   return (
     <div>
+      <Link to="/trdyear" className="back-icon" style={{ position: 'absolute', top: '75px !important', left: '35px', fontSize: '42px' }}>
+        <svg 
+          xmlns="http://www.w3.org/2000/svg" 
+          width="42" 
+          height="42" 
+          fill="currentColor" 
+          viewBox="0 0 16 16" 
+          style={{ 
+            fontWeight: 'bold',
+            position: 'fixed', 
+            top: 139, 
+            left: 20
+          }}
+        >
+          <path 
+            fillRule="evenodd" 
+            d="M1 8a7 7 0 1 0 14 0A7 7 0 0 0 1 8m15 0A8 8 0 1 1 0 8a8 8 0 0 1 16 0m-4.5-.5a.5.5 0 0 1 0 1H5.707l2.147 2.146a.5.5 0 0 1-.708.708l-3-3a.5.5 0 0 1 0-.708l3-3a.5.5 0 1 1 .708.708L5.707 7.5z"
+          />
+        </svg>
+      </Link>
         <Header/>