Do you have a legal right to work in the United States? I am indian boy?

Nobody in the USA knows what "rights" means. That is why there is so much squabbling about the subject. You will have to ask a question that does not use that word.

According to court rulings, a man has the right to support himself. According to law makers, a man has to have their permission to work. And this is in a country where people brag about their freedom. People living in huts in jungles have more freedom.