Khana also known as Dak or Lilavati was an Indian poet and legendary astrologer, who composed in the medieval Bengali language between the ninth and 12th centuries AD. She is associated with the village Deulia, in present-day Barasat, North 24 parganas district, West Bengal.

Chandraketugarh, located in the Ganges Delta, is actually consists of a cluster of villages in the 24 Parganas district of West Bengal, about 35 kilometres (22 mi) north-east of Kolkata. The name Chandraketugarh comes from a local legend of a mediaeval king of this name. This civilization can perhaps be identified with the Gangaridai of Graeco-Roman accounts. In early historic times, Chandraketugarh was connected to the Ganga by the Bidyadhari River and must have been an important centre of trade and possibly also a political centre.