This is a migrant, photographed near Kaveri river.

In the Birds of South Asia, Ripley's Guide, Pamella C. Rasmussen and John C. Anderton has mentioned about Blue-cheeked Bee-eater: "Summer visitor to plains and valleys of Afghanistan, most of sub-Himalayan Pakistan (Baluchistan, Mekran Coast, Indus Valley) and NW India east to Haryana, and south to Kathiawar Peninsula (Gujarat). Spring migrant (Apr-May) across Arabian Sea; autumn migrant (Aug-Nov) farther east and south".

So I checked other images of this bird and I found the tail to be blue. So I guess this is a blue-tailed bee-eater rather than a blue-cheeked bee-eater. The size of these two species is the same with the blue-cheeked bee-eater having more greens in its body.

Sabyasachi