Bengaluru, Dec 31 (ANI): National Investigation Agency (NIA) and National Security Guard (NSG) visited the blast site in India’s IT hub of Bengaluru and said every sort of assistance would be provided in probing the bomb blast, which killed one woman and wounded three others. The crude bomb exploded outside a busy restaurant on Sunday in the centre of Bengaluru packed with evening crowds, prompting a security alert in other cities. The improvised explosive device had been placed between two flower-pots near the Coconut Grove restaurant. Nobody has claimed responsibility for the blast. Meanwhile, Bengaluru Police Commissioner M. N. Reddi asked people not to worry as security was tightened. According to reports, the City police will use, drone aerial cameras, for the first time, to monitor New Year celebrations on MG Road and Brigade Road in the city.