My view is short on BankNifty based on following analysis.
As per my observation Banking Sector looks under performing or weaker in comparison to Nifty.
Nifty after making a low 7511 on 24th March has corrected almost near 50%, whereas BankNifty is struggling to correct even 38%.
Also I have observed Bearish Reverse Divergences on Daily Time Frame before taking short position which is noticed in 4th wave.
My Entry is at spot 21688 and Stop at 21829