Taka

using System;
using System.Globalization;

public class HelloWorld
{
    public static void Main(string[] args)
    {
      double value = 100000;
      Console.WriteLine("\n--------- Dispalying Currency for BD ---------------\n");
      Console.WriteLine(value.ToString("C",
      CultureInfo.CreateSpecificCulture("en-IN")));
      Console.Read();
    }
}