Kalighat was a Ghat sacred to Kali on the old course of the Hooghly river in the city of Calcutta. The name Calcutta is said to have been derived from the word Kalighat. The river over a period of time has moved away from the temple. The temple is now on the banks of a small canal called Adi Ganga which connects to the Hoogly. The Adi Ganga was the original course of the river Hoogly.