Medieval Bengali poet Bipradas Pipilai mentioned in his "Manasamangal Kāvya" (or "Manasa Vijay") that merchant ship of Chand Sadagar used to proceed to the sea from ancient Champaknagar after passing through Tribeni, situated at the junction of Saptagram and the confluence of Ganges, Saraswati and Jamuna River of modern-day West Bengal.

[1] Narayan Dev in the scriptures gave an account in his Manasamangal about the merchant ship of the trader Chand Saudagar proceeding to the sea from ancient Champaknagar passing through Saptagram and Tribeni, the tri-junction of the Ganges, Saraswati and Jamuna River.

[citation needed] In the Padma Puran (Hindu Scripture), account of Chand Bania (Sadagar) is specifically mentioned.

In "Ain-i-Akbari" also the name of Champainagari Pargana under Sarkar Madaran has been mentioned, which was located in the present Purba Bardhaman district of West Bengal.

[2][3] Sundarban Tiger Reserve of West Bengal, is associated as the place where Neti, foster mother of Ma Manasha, lived and worked as a washerwoman.