Kalyani is a planned urban city in Nadia district in the Indian state of West Bengal. It is located around 48 kilometers from Kolkata — the capital …Kalyani is a planned urban city in Nadia district in the Indian state of West Bengal. It is located around 48 kilometers from Kolkata — the capital of West Bengal. Kalyani is the administrative headquarters of Kalyani subdivision. It resides on the eastern banks of Hooghly River, and is a part of the area covered by Kolkata Metropolitan Development Authority.