The West Bengal government on Monday declassified 401 cabinet files from the pre-independence era.
Announcing the declassification of the files which date from 1938 to Independence, Chief Minister Mamata Banerjee said the files throw light on various historical decisions by the British government.
"From 1938 to 1947 is a very important period of Indian history and these files provide a lot of information about the cabinet decisions taken at the period.
"The hard as well as soft copies of the files are available in the state archive at the secretariat library and the Kolkata information centre," she added.
The Mamata Banerjee government on September 18 made public 64 classified files on Netaji Subhas Chandra Bose.
The 401 files were from pre-independence era.