Wrong information for marriage

I got married recently on 2nd dec 2022. Its an arrange marriage through bharat matrimony. The boy given surname is malhotra and told he is punjabi. But later i found some old document wherein his parents last name was different. His father surname in it was mentioned as ganesh dubey. Ideally it should have been ganesh malhotra… and i have not asked my husband about it till now since i am not sure whats the truth. So what can be done if this is true if they have hide the real surname to me before marriage?