India hoped that Pakistan government will "effectively secure" its nuclear assets,amid concerns over their safety in the wake of a terror strike at a facility housing such arsenal. India also made known its unhappiness over "very very slow and tardy" progress of investigation and prosecution in the Mumbai attacks case. "We have seen reports of what happened today at Kamra (in Pakistan). We hope the Pakistan government will continue to take steps to effectively secure their nuclear assets," Foreign Secretary Nirupama Rao told reporters in New Delhi. She was asked to comment on the terror attack near a strategic military complex reportedly linked to Pakistan's nuclear weapons programme near Islamabad. The attack has triggered concerns over safety of Pakistan's nuclear arsenal. Asked about the sense India is getting about the status of probe and prosecution by Pakistan in the Mumbai attacks,Rao referred to the meeting she had with Pakistan Foreign Secretary Salman Bashir and the discussions External Affairs Minister S M Krishna had with his Pakistani counterpart Shah Mehmood Qureshi in New York last month. "During these meetings,of course,we emphasised our concerns about the very very slow and tardy pace of action being taken against those responsible,conspirators and others responsible for the Mumbai terror attacks," she said.