Female 20 years old..and my height is 5'3 which i feel is very short..i want to grow more taller atleast 5'6 so could you please tell me some technqs?

Cannot be done: Once the epiphyseal plates in a person's bones have fused, the bones cannot grow longer, so additional height cannot be gained. These plates generally close in adolescence. It is doubtful that you would be able to gain height at this point. In the future, perhaps, surgical techniques could be used to increase height for cosmetic reasons, but these techniques are limited to treating fractures now.