Blue Indian Ring Neck Parakeet

The rose-ringed parakeet (Psittacula krameri), also known as the ring-necked parakeet, is a medium-sized parrot in the genus Psittacula of the family Psittacidae with disjunct native ranges in Africa and South Asia and now introduced into many other parts of the world where feral populations have established..It is one of the few parrot species that have successfully adapted to living in disturbed habitats and withstood the onslaught of urbanisation and deforestation.

https://en.wikipedia.org/wiki/Rose-ringed_parakeet