var studentname = Objstudent.OrderBy(x => x.Name);

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {
            List Objstudent = new List(){
        new Student() { Name = "Suresh Dasari", Gender = "Male", Subjects = new List { "Mathematics", "Physics" } },
        new Student() { Name = "Rohini Alavala", Gender = "Female", Subjects = new List { "Entomology", "Botany" } },
        new Student() { Name = "Praveen Kumar", Gender = "Male", Subjects = new List { "Computers", "Operating System", "Java" } },
        new Student() { Name = "Sateesh Chandra", Gender = "Male", Subjects = new List { "English", "Social Studies", "Chemistry" } },
        new Student() { Name = "Madhav Sai", Gender = "Male", Subjects = new List { "Accounting", "Charted" } }
        };
            var studentname = Objstudent.OrderBy(x => x.Name);
            foreach (var student in student name)
            {
                Console.WriteLine(student.Name);
            }
                Console.ReadLine();
    }
}
    class Student
    {
        public string Name { get; set; }
        public string Gender { get; set; }
        public List Subjects { get; set; }
    }
}