The Common Hawk-Cuckoo (Hierococcyx varius), popularly known as the Brainfever bird, is a medium-sized cuckoo resident in the Indian Subcontinent. It bears a close resemblance to the Shikra, a sparrow hawk, even in its style of flying and landing on a perch. The resemblance to hawks gives this group the generic name of hawk-cuckoo and like many other cuckoos these are brood parasites, laying their eggs in nests of babblers. (Wiki)
Shots and captures 