any body know the reason for current drop?
This is natural process of going down in these days. What I mean by this is straight and simple, they are dropping due to various market corrections as well as few of the bans that incurred last week. This includes Korean exchangers going down. This is fact that Korea had largest volume of bitcoin and due to sudden crash of the exchanger everything was settled to down as lots of panic sells happened and the effect of which can be clearly seen on the market.
Adding to this I have also noticed that bitcoin went down last year at the same months and again came back sooner than we could have thought about it. So yeah its completely natural and we dont have to worry much about it.
yes I agree with you, if we look at the btc chart at the beginning of the year in previous years have the same decline, besides some countries banned cyptocurencies, and ultimately effect on altcoin too, just wait and do not panic.