সি# IndexOf

using System;
namespace MyApplication {
  class Program {
    static void Main(string[] args) {

    var fruits = new List<string> { "আপেল", "আঙ্গুর", "কমলা", "কলা" };
    int result = fruits.IndexOf("আপেল");

    Console.WriteLine(result);

    }
  }
}