NEW DELHI, March 15 -- Chandra Kumar Bose, a grandnephew of freedom fighter Subhas Chandra Bose, has demanded an investigation into the "authenticity" of Netaji's cap currently on display at the Red Fort museum. His demand follows an initial claim that the cap was missing, which was clarified by the authorities. He has now claimed that the cap - back in its glass case in Delhi - may not be the original one. The controversy began when members of an organisation called Open Platform for Netaji (OPN) discovered an empty display case at the INA Museum. Naveen Bamel, a lawyer and a member of the organisation, visited the museum recently and found the iconic cap was missing. Staff were reportedly unable to provide an immediate explanation. This prompted Chandra Kumar Bose, a former leader of PM Narendra Modi's BJP, to raise the alarm online, addressing his concerns directly to the PM. He noted in his post on X that he and others had handed over the cap to PM Modi, "which you had personally dedicated at the Netaji Museum, Red Fort - Delhi on 23 Jan - Netaji Jayanti (Patriots Day of India) 2019". He said the cap's going "missing" was "highly embarrassing". "Netaji researchers and those who had previously seen this said cap feel that this isn't the original cap," he said....