The Chief Minister of Maharashtra Prithviraj Chavan has held a meeting of senior officials to step up security for Mumbai in the wake of the recent blasts that rocked the nearby city of Pune. Speaking to media persons in Mumbai, Prithviraj Chavan said that two teams from the National Investigation Agency and bomb disposal experts will be investigating the motive behind the blasts and what device was used to trigger off the blasts in Pune. He also requested people to remain calm and not panic and said that information will be shared whenever there is something concrete.