diff --git a/NDV_Code_By_ChandiniB_Student_Mangement/Studentmange.java b/NDV_Code_By_ChandiniB_Student_Mangement/Studentmange.java
new file mode 100644
index 000000000..dd57a7d9b
--- /dev/null
+++ b/NDV_Code_By_ChandiniB_Student_Mangement/Studentmange.java
@@ -0,0 +1,164 @@
+import java.util.*;
+
+class Student {
+    int studentId;
+    String name;
+    String branch;
+    int year;
+    int marks;
+
+    public Student(int studentId, String name, String branch, int year, int marks) {
+        this.studentId = studentId;
+        this.name = name;
+        this.branch = branch;
+        this.year = year;
+        this.marks = marks;
+    }
+
+    public String toString() {
+        return "ID: " + studentId + ", Name: " + name + ", Branch: " + branch + ", Year: " + year + ", Marks: " + marks;
+    }
+}
+
+class StudentManager {
+    private Map<Integer, Student> students;
+
+    public StudentManager() {
+        students = new HashMap<>();
+    }
+
+    public void addStudent(Student student) {
+        students.put(student.studentId, student);
+        System.out.println("Student added: " + student);
+    }
+
+    public void viewStudent(int studentId) {
+        if (students.containsKey(studentId)) {
+            System.out.println(students.get(studentId));
+        } else {
+            System.out.println("Student not found.");
+        }
+    }
+
+    public void updateStudent(int studentId, String name, String branch, int year, int marks) {
+        if (students.containsKey(studentId)) {
+            Student student = students.get(studentId);
+            student.name = name;
+            student.branch = branch;
+            student.year = year;
+            student.marks = marks;
+            System.out.println("Student updated: " + student);
+        } else {
+            System.out.println("Student not found.");
+        }
+    }
+
+    public void deleteStudent(int studentId) {
+        if (students.containsKey(studentId)) {
+            students.remove(studentId);
+            System.out.println("Student deleted.");
+        } else {
+            System.out.println("Student not found.");
+        }
+    }
+
+    public void displayTopScorer() {
+        if (students.isEmpty()) {
+            System.out.println("No students to display.");
+            return;
+        }
+        Student topScorer = Collections.max(students.values(), Comparator.comparingInt(s -> s.marks));
+        System.out.println("Top Scorer: " + topScorer);
+    }
+
+    public void displayAverageMarks() {
+        if (students.isEmpty()) {
+            System.out.println("No students to calculate.");
+            return;
+        }
+        double average = students.values().stream().mapToInt(s -> s.marks).average().orElse(0.0);
+        System.out.println("Average Marks: " + average);
+    }
+}
+
+public class StudentManagementSystem {
+
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+        StudentManager manager = new StudentManager();
+        int choice;
+        
+        do {
+            System.out.println("\nStudent Management System");
+            System.out.println("1. Add Student");
+            System.out.println("2. View Student");
+            System.out.println("3. Update Student");
+            System.out.println("4. Delete Student");
+            System.out.println("5. View Top Scorer");
+            System.out.println("6. View Average Marks");
+            System.out.println("7. Exit");
+            System.out.print("Choose an option: ");
+            choice = scanner.nextInt();
+
+            switch (choice) {
+                case 1:
+                    // Add Student
+                    System.out.print("Enter student ID: ");
+                    int id = scanner.nextInt();
+                    scanner.nextLine(); // consume newline
+                    System.out.print("Enter student name: ");
+                    String name = scanner.nextLine();
+                    System.out.print("Enter student branch: ");
+                    String branch = scanner.nextLine();
+                    System.out.print("Enter student year: ");
+                    int year = scanner.nextInt();
+                    System.out.print("Enter student marks: ");
+                    int marks = scanner.nextInt();
+                    manager.addStudent(new Student(id, name, branch, year, marks));
+                    break;
+                case 2:
+                    // View Student
+                    System.out.print("Enter student ID to view: ");
+                    int viewId = scanner.nextInt();
+                    manager.viewStudent(viewId);
+                    break;
+                case 3:
+                    // Update Student
+                    System.out.print("Enter student ID to update: ");
+                    int updateId = scanner.nextInt();
+                    scanner.nextLine(); // consume newline
+                    System.out.print("Enter new student name: ");
+                    String newName = scanner.nextLine();
+                    System.out.print("Enter new student branch: ");
+                    String newBranch = scanner.nextLine();
+                    System.out.print("Enter new student year: ");
+                    int newYear = scanner.nextInt();
+                    System.out.print("Enter new student marks: ");
+                    int newMarks = scanner.nextInt();
+                    manager.updateStudent(updateId, newName, newBranch, newYear, newMarks);
+                    break;
+                case 4:
+                    // Delete Student
+                    System.out.print("Enter student ID to delete: ");
+                    int deleteId = scanner.nextInt();
+                    manager.deleteStudent(deleteId);
+                    break;
+                case 5:
+                    // Display Top Scorer
+                    manager.displayTopScorer();
+                    break;
+                case 6:
+                    // Display Average Marks
+                    manager.displayAverageMarks();
+                    break;
+                case 7:
+                    System.out.println("Exiting program.");
+                    break;
+                default:
+                    System.out.println("Invalid option. Please try again.");
+            }
+        } while (choice != 7);
+
+        scanner.close();
+    }
+}