Am 28 years old and my height is 5'5'' I want to increase only 2'' is their any possible solution or suggestion for me.

You are now old enough that your long bones have finished growing. What is your father's height? Grandfather's? Uncles'?

I agree with WG.

Most people have stopped growing at that age which leaves only mechanical means.

That may not be feasible in many cases but it is something to think about.