Netaji Subhas Chandra Bose's grand-nephew Chandra Kumar Bose on Monday joined the Bharatiya Janata Party (BJP) in the presence of party president Amit Shah.
Chandra Kumar Bose is the grandson of Netaji's elder brother Sarat Chandra Bose.
Shah handed over the BJP flag to Bose at a public rally here amid cries of "Bharat Mata ki Jai".
Fifty-five-year old Chandra Bose, son of Amiya Nath Bose, is the convenor of The Open Platform for Netaji, a forum of family members and historians which has for decades campaigned for declassification of files related to the revolutionary leader.
Bose, who studied Economics at Hendon College, London, pitched his lot with the BJP a day after Prime Minister Narendra Modi declassified 100 files related to Netaji on January 23.