Secret files on freedom fighter Netaji Subhas Chandra Bose will be made public by the West Bengal government today. The files which will be on display at the Kolkata police museum are expected to reveal many more secrets on the leader, whose death has been a mystery for years.

The files may contain enough circumstantial evidence that he was alive till at least 1964, sources told The Times of India.

An American intelligence report prepared in the early 1960s suggests that Netaji could have returned to India sometime in February 1964 -- 19 years after it was claimed that he died in an air crash in Taihoku, Taiwan.

Though Russia is not mentioned, Netaji researchers believe American intelligence units had learned about his imminent return from Russia via China. He would have been 67 years old at the time, the report says.

Read the full report here