You need a browser and a few minutes. An account is optional.
1. Open the board
Go to ludobangla.com/play. You should see Computer, Play, Team Up, Online and Friends. If you only wanted to learn the moves first, tap Computer and play a 2-player game against one opponent. That uses no network after the page loads.
2. Play other people
Tap Online, type a nickname, pick 2 or 4 players. That is public multiplayer Ludo. If seats stay empty, computers sit so you are not waiting on a lobby. For people you already know, tap Friends instead and follow the room-code steps.
3. Roll and move
When the board is yours, roll. Highlighted tokens can use that number. Tap one. Extra rolls (6, capture, home) work as in the rules. If nothing can move, the turn passes.
If the page will not connect
Online and Friends need a live connection to the game server. Offline modes do not. Check that you are not blocking websockets. Then try a Computer game so you know the client itself works.