How can I identify a low flying plane at night over Bangalore?
On Nov 12 at about 1845 UTC, which would be about 1215 local on Nov. 13, a Vistara A320, reg. VT-TTM, took off from BLR and did several touch-and-go’s at VOBG then returned to BLR. 

On Nov. 10, around the same time, another Vistara A320, reg. VT-HYD, did the same thing. Taking off from BLR, doing touch-and-go’s at VOBG before returning to BLR. 

According to this article @pondlife found, VOBG airport is open for pilot training.