Raja Ko Rani Se Pyar Ho Gaya (2000)

Mohit, a young man raised into beliving in fairy tales, comes to Bombay to find Manisha, a young woman whom he saved from drowning in a lake near his village, whom he belives to be an actual mermaid princess. Mohit shacks up in his estranged brother's apartment and looks after his three children, with a little of Manisha's help, which takes a turn when Mohit finds himself in posession of a super smart but troublesome, baby elephant which shows up on his doorstep and he tries to keep it a secret from the rest of the neighborhood.