This document describes an Android application called Tambola that allows users to play an online multiplayer version of the game Tambola on their Android devices over Wi-Fi. It discusses the key activities and features of the app, including organizing a game as the server or playing as a client, generating tickets, receiving randomly drawn numbers, checking for completed rows/houses, and optional settings like music and automation. The objective is to create an efficient, secure multiplayer Tambola game in the Android environment.