On Monday, both indices opened flat. Then soon, both started moving upward, and the buying momentum was sustainable. Thus both indices closed on a positive note.
The 17490-440 zone will play a crucial role for the Nifty bulls. And below that, the major support is at the 17320-290 zone. On the higher side, the 17611-630 zone can act as a hurdle for the bulls.
Still, the 38200-300 is a crucial resistance zone for Bank Nifty Index. And on the downside, the major support is at the 37950-700 zone.

Nifty Intraday Gann levels
Nifty bulls need to break & sustain above 17570 to move towards 17610/17660/17720/17790.
On the lower side, the Gann support level is 17470; below that Index can move towards 17430/17380/17320/17250.
Bank Nifty Intraday Gann levels
Bank Nifty bulls need to break & sustain above 38300 to move towards 38450/38650/38900.
On the lower side, the Gann support level is 38050; below that Bank Nifty Index can move towards 37900/37700/37450.
Note: The above levels are for educational purposes. Not Buy/Sell advice.