To stop increasing height is not in man's hand. It is natural. It depends on various factor like genetic, environment, nutrition,exercise etc. If your height is 6 feet at the age of 16 years then no need to be worry about it. Now, your growth would be stop because body growth happens during puberty age. It starts at the age of 11 and ends at 16. Since, india is a hot country so puberty age ends earlier. So very less chance to be grow more after 16 years age. In some case, body growth happens till 18 years. Puberty period becomes more in cold countries. So there most of the people are seen very tall. Now-a-days, mostly people wish to be tall whether be boys or girls. Many people seek tall bridegroom even though, their daughter are short in height so that coming generation would tall. God has given you handsome personality . I think, there are various use of height inside or outside home. You may prove best sports person for some games like volley ball, basket ball etc. Some people are seen tall because of genetic effect as well as good nutrition. It is true that body growth happens due to growth hormone. Secretion of growth hormone varies from person to person. So, some person body growth is seen more compare to other. As per my view, there is no any medical complication and you should be happy.