Bank Nifty options 8 Jan 2020

As discussed Bank Nifty found day high at our resistance and decision range was enough reference to go long in mid day for heft gains towards close.

Decision Range for the day
31438-31523
Support for the day
31116
Resistance for the day
31769

Expectation
Initial rally to get sold , sharp up move towards close

My trade
I'll try to sell calls at resistance and buy calls at support