Movie ending

Today we finished the movie. it was a great movie he won $20,000,000 dollars. He was interrogated and the guy found that he was telling the truth. He let him go and said he didn't cheat. He used his final life line Latika didn't know the answered but he guessed correctly. his brother killed the gang lord but he was shot by his thugs. In the end there was this giant singing and dance number with the credits and everyone was dancing. they even had the character that played them as they were young dancing.