Jamshedpur, Nov 26 (ANI): Union Home Minister Rajnath Singh on Wednesday said that the terrorist attack which took place in Mumbai on 26/11 was a disastrous incident. He said that the attack was clearly a Pak operated one and the previous government had asked Pakistan government to act on a tip off and bring to justice its culprits. Singh also said that Indian government will build a diplomatic pressure on Pakistan to handover the accused of the attack to India.