Armed with sufficient material on the terror attacks in Mumbai to nail Pakistan, India will mount a diplomatic offensive from Monday by convening a two-day closed door meeting in New Delhi [Images] with the heads of all foreign countries' missions in the national capital as part of strategy to get Pakistan declared as a 'terrorist State'.

Both Prime Minister Manmohan Singh [Images] and External Affairs Minister Pranab Mukherjee will interact with ambassadors and high commissioners stationed in Delhi and discuss with them the problem of the repeated terror attacks planned and executed by their masters sitting in neighbouring countries.

The exercise is to convince foreign governments that Pakistan would continue to harbour terrorists that pose a danger not only to India but to all other countries and to pressurise it to take effective steps for getting rid of all terrorist outfits and camps and not allowing them the base to regroup under new names.

Evidence of the involvement of the Pakistan Army's [Images] secret agency, Inter Service Intelligence, in the Mumbai attacks as also in the attack on the Indian mission in Kabul and other attacks will also be presented at the meeting to convince foreign governments that all efforts to banish terrorists from Pakistan will fail so long as they continue to get patronage and support of ISI, sources in New Delhi said.

Diplomats will also be provided the evidence gathered about the Mumbai terror attacks [Images] as also on various other incidents of terrorism, sources added.

A compact disc containing the evidences gathered so far in the 26/11 incident, including the information gathered from interrogation of the lone surviving terrorist Ajmal Kasab [Images], will be presented to the diplomats.

Sources said the CD and other material is also being sent to all Indian missions abroad to present them to the respective governments as part of the diplomatic offensive India is now mounting to build an international pressure on Pakistan.

Mukherjee will talk to the diplomats on Monday, setting the tone of the two-day meeting to be held in the DRDO complex in New Delhi, while Dr Manmohan Singh will address the assembled heads of the foreign mission on Tuesday after they get a thorough briefing from a team of officials from the foreign ministry and security and intelligence agencies.

Since the Mumbai Police is primarily handling the investigations of the 26/11 attack that left about 200 killed, one of its senior officers may also be present at the meeting to answer to any queries by the diplomats.