Asked about the fourth dossier submitted by India Saturday on the 26/11 Mumbai terror attacks that claimed over 170 lives, Qureshi said its queries on the basis of which the document was handed over were necessary to make the case more logically tenable in the court.

India had suspended the subcontinental dialogue process in the wake of the Nov 26-29, 2008 Mumbai carnage that New Delhi has blamed on the Pakistan-based Lashkar-e-Taiba (LeT).

Ajmal Amir Kasab, the lone gunman captured alive during the Mumbai carnage, has admitted the LeT trained him for the assault.

Pakistan has charge sheeted five key LeT operatives, including its top commander Zakiur Rehman Lakhvi and communications expert Zarar Shah.

However, the issue has soured with Pakistan's Supreme Court Monday indefinitely adjourning pleas against the release from house arrest of Jamaat-ud Dawa (JuD) chief Hafiz Saeed, who India says masterminded the Mumbai attacks.

Saeed had founded the LeT, which morphed into the JuD after it was banned in the wake of the Dec 13, 2001 attack on the Indian parliament that New Delhi has blamed on the terror group.

Indian Prime Minister Manmohan Singh, while intervening in the parliamentary debate on the Sharm el-Sheikh meeting and the government's other foreign policy initiatives, had ruled out the resumption of the dialogue process until Pakistan took credible action against the perpetrators of the Mumbai attacks.

At the same time, he said the India-Pakistan engagement would continue at the foreign secretaries level.