Common, can be heard screeching starting dusk into late evenings, sitting watchful on electric lines and trees on the road, and swooping into bushes or onto the road to catch their prey.
Remarks
Solitary or in pairs. I have seen a family living inside the club house party hall (they get in and out through gaps in the mangalore tiles in the roof). I have taken a picture in the night with my Canon and few months back was fortunate to get a good shot outside my gate perched on the bottle-brush tree one late afternoon.