i have a fear that is BTC value going to fall down because i have stored 20 BTC in my wallet. If any experts here please tell me is price going to drop or else it will increases ?
There aren't any experts here. Every person can only make a guess, one does it way beyond what we consider is reasonable, and the other just don't know and is talking nonsense.
Of course the price in 2016 will increase as we comming closer and closer to the reward halving. Try holding your coins at least till that time.
how do you know price will increase? You are just hoping they will because markets are always right BUT the movements they make never have to be logical. Bitcoin can be 500$ next year or 50$. Halving or not...