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it matters how old are you
Have him come meet your parents. Have him over for dinner.
You could tell them they are just friends? not a date?
You don't convince them of a "play date" that stops around are 3-4...and the point of play dates is for parents to put kids together to play. You are up front with them and tell what you want to do with the other person, as well as when/why.
well you ask them then you have them meet your boyfriend but make sure your boyfriendd acts how your parents would want your boyfriend to be like
Only two options : try to convince your parents that he is acceptable, or secretly date him.
You convince your parents to let you go out with a girl by showing them that you are mature enough to be dating. This means pulling your weight around the house, keeping your grades up, and being generally respectful and responsible
there is absolutly NO LAW against that. so if ur parents approve and u wanna date that 22 year old guy go right ahead.
Indian parents have their own customs to make their kids do well in life. Most of them will try to make their kids get high A grades at school. They also do not allow their kids to date.
One day ahead
As far as I know, it is never illegal to date. My opinion about your parents not liking him is that you should ask them if they mind you dating the 19 year old. If they don't MIND then go ahead, but if they do, then listen, parents usually have a good reason for things.
This is an issue that only you will be able to solve. This is a family issue and the only answer I can give you is to maybe do some research on how interracial dating is more accepted by people.