Hello,
For Bank Nifty now major supply zone @ 30900-31120 and demand zone @ 30550. Tomorrow if it will sustain below 30550 then it may test the next support zone @ 30120-30210 very easily. I will sell BNF in this case.
Open Position:
On Friday, Sold 31300 call @ 120 (closed @ 62) and 31200 call @ 140 (Closed 80).