Condemning the government's position on the issue, the AIFB, which was founded by Bose, asked the leaders of the ruling BJP to come clean on it and warned them of staging protests across the country.
"The Union government, led by the BJP, is misleading the country regarding the mysterious disappearance of Netaji Subhas Chandra Bose," the AIFB said in a statement.
It also referred to the report of the Justice MK Mukherjee Commission, the last judicial panel to have inquired into Bose's disappearance, which claimed that he had not died in the plane crash in Taihoku in modern day Taiwan.
The Centre today said Bose had died in the plane crash, in a bid to put an end to a controversy that refuses to die down about the freedom fighter surviving the accident.
The Ministry of Home Affairs, in a reply to a Right to Information (RTI) application from a Kolkata resident, said the government had come to this conclusion after considering the reports of various committees that probed the disappearance of Bose.