On the upper side major supply zone @ 21500-21800 and downside short turm major demand zone @ 19000-19200. Also, there is trendline support near the demand zone. In any case, if Bank Nifty will break and sustain below 19000 then minimum 1000 points downside range will open.
The yellow zone is an OTM option selling zone for me. I will avoid taking a trade-in FUT in this yellow zone.
