Paris Hilton -- Who Wants to be a Slumdog Hundredaire?!!?!

Paris Hilton made a begger's life in Mumbai a few hours ago -- stopping her SUV to hand a $100 bill to a poor woman who was carrying a baby ... and then dropping more than $2,000 in cash on other poor people in the area.

According to local Indian reports, the woman immediately began asking photogs if anyone could break it into smaller bills -- we're guessing it's not very safe to walk around the slums with that much cash.

And get this -- sources close to Paris tell TMZ ... after the $100 incident, Paris was so emotional about the poverty situation in India, she decided to give away all of the cash she was carrying on her at the time to other poor people in the area ... more than $2,000 in total.

Paris -- who's in India to launch some new Paris Hilton stores -- later tweeted about the incident .... saying, "India is beautiful, but some parts are very poverty stricken. Broke my heart to see babies sleeping on the streets."