HDFC Bank is forming a ST on Daily TF. Being the market leader, its move will affect Bank Nifty big time.
Move on either side will give 1-2% at least (bigger move possible on upper side)
If breaks on lower side, target 1370, 1360 and 1350
If breaks on upper side then target 1503, 1548
P.S. Wait for 30-60 min candle close after breaking the triangle.