Chandigarh: On a day which was meant to remember and salute the sacrifice made by India's three great sons on the occasion of Martyr's Day, the Chandigarh Municipal Corporation ended up committing an embarrassing goof-up. In a major blunder, the civic body of Chandigarh authorised the putting up of such Martyr's Day hoardings across the town, which had the photographs of three US soldiers instead of Indian Army men, reports said. March 23 is marked as the Martyr's Day to honour the sacrifice of Bhagat Singh, Rajguru and Sukhdev who were hanged to death on this very day in 1931. The hoardings were put up to let the citizens know about the events to be held for the commemoration of the martyrdom day, that would include a wreath-laying ceremony and honouring the war widows.