As it can be seen that a exhaustion gap is formed in bank nifty with rising volumes which is a confirmation of exhaustion gap and also the confirmation of coming downfall. So now banknifty will first fill its gap by coming at 20200 and once if it breaks below these levels you can expect a major downfall. The main reason why I am expecting downfall is firstly because of the negativity shown in charts and the events which are going to happen in the next few months like UP ELECTIONS, GST, BREXIT which will definitely create panic in market. So traders & investors please make sure to put your hard earned money on the long side.