Sir, im 19 from india. my mom is 5ft 1in and my dad is 5ft 9in. im a lot like my dad genetically. but my height is only 5ft 5.5 in. will my ht incerea?

Not likely : I believe that you have attained the full adult height.

Hard to say: Future growth is dependent on whether the growth centers in your long bones remain open. Most have closed in 19 yo males. If your family has a history of delayed growth, these may be open and growth possible.An x-ray of your wrist and hand can detect your bone maturity.If the index is consistent with 18, you are done, if 14 you can grow more.