NEW DELHI (Reuters) -- India said on Sunday it would give Pakistan evidence its investigators found to link Pakistan's spy agency and an Islamist militant group based there to deadly bomb blasts in Mumbai that killed 186 people in July.

The comments by India's new foreign secretary, Shiv Shankar Menon, came a day after police in Mumbai, the country's financial hub, said they had solid proof that Pakistan's Inter-Services Intelligence (ISI) agency had masterminded the carnage.

"We will judge them not by immediate reactions or verbal statements (but) by what they actually do about terrorism," Menon said.

"It seems to me logical that the mechanism has to deal with this kind of evidence," he added, referring to an agreement between the two countries to set up a joint agency to tackle terrorism.