I am an american woman can i marry a man from india if he is not legal?

i live in the us(florida) and i fell in love with a man from india. he has gone back to india due to his visa soon to expire. he is suppose to return in a few months, but if i want to ask him to marry me. is that possible? i know the culture is very different there in india. and will he be able to marry me?
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