সি# nested

using System;
using System.Collections.Generic;

class Program {
  static void Main() {

    var user = new Dictionary<string, object>
    {
      ["নাম"] = "মোঃ আরিফ",
      ["তথ্য"] = new Dictionary<string, string>
      {
        ["স্বপ্ন"] = "সফটওয়্যার ইঞ্জিনিয়ার",
        ["দেশ"] = "বাংলাদেশ"
      }
    };

    Console.Write("<table border='1'>");

    Console.Write("<tr>");
    Console.Write("<th>নাম</th>");
    Console.Write("<td>");
    Console.Write(user["নাম"]);
    Console.Write("</td>");
    Console.Write("</tr>");

    Console.Write("<tr>");
    Console.Write("<th>তথ্য</th>");
    Console.Write("<td>");

    Console.Write("<table border='1'>");

    Console.Write("<tr>");
    Console.Write("<th>স্বপ্ন</th>");
    Console.Write("<td>");
    Console.Write(
      ((Dictionary<string, string>)user["তথ্য"])["স্বপ্ন"]
    );
    Console.Write("</td>");
    Console.Write("</tr>");

    Console.Write("<tr>");
    Console.Write("<th>দেশ</th>");
    Console.Write("<td>");
    Console.Write(
      ((Dictionary<string, string>)user["তথ্য"])["দেশ"]
    );
    Console.Write("</td>");
    Console.Write("</tr>");

    Console.Write("</table>");

    Console.Write("</td>");
    Console.Write("</tr>");

    Console.Write("</table>");

  }
}