This is a male with the black and pink neck band. These parakeets are common throughout most of India and we saw them daily in the lowlands. In agricultural areas they are not particularly welcome as they can become a serious pest foraging on grain and fruit. They are aggressive defenders of their nests and recently they have been documenting attacking and even killing Black Rats (Hernández-Brito 2014). Two subspecies occur. This is the larger more northerly P. k. borealis in which the lower mandible is red. It is replaced to the south by P. k. manillensis in which the lower mandible is black. Two other races occur in tropical Africa. The species is popular in the pet trade often going under the name Neumann's Ring-necked Parakeet. Escaped birds are established locally including a stable population in Bakersfield, California. Canon PowerShot SX50 HS
References:
Ali, S & SD Ripley (1987). Compact Handbook of the Birds of India and Pakistan. 2nd Edition. Oxford University Press.
Hernández-Brito D, Luna A, Carrete M, Tella JL (2014) Alien rose-ringed parakeets (Psittacula krameri) attack black rats (Rattus rattus) sometimes resulting in death. Hystrix Ital J Mammal 25:121–123.
Rasmussen & Anderton. 2012. Birds of South Asia: The Ripley Guide. Lynx Edicions.