With Pakistan initiating a probe on the evidence provided by India on the Mumbai attacks, New Delhi is considering giving more material to it, including DNA sample of lone arrested terrorist Ajmal Amir 'Kasab'.
The second dossier is also likely to name Lashkar-e-Tayiba leaders Zakiur Rehman Lakhvi and Zarar Shah as conspirators of the Mumbai carnage and furnish details as to how they planned the attacks and trained the attackers.
The DNA sample of Kasab, which has already been collected by the investigators as part of efforts to prove that he is a Pakistani national, is likely to be given soon, sources said.
This is to enable the Pakistani authorities to match the sample with his father and establish his Pakistani identity, they said.
The sample was not given to Pakistan when the first dossier was handed over to it on January 5 as India was not sure whether Islamabad would pursue the leads given.
Pakistan had been making contradictory statements on Kasab's nationality before acknowledging recently that he could be Pakistani.
Pakistan Foreign Minister Shah Mehmood Qureshi had on Saturday said his country had initiated investigation based on the material provided by India and anybody, including Pakistani nationals, found involved will be prosecuted.
Islamabad has said it will undertake prosecutions in Pakistan only and not hand over anybody to India.
Earlier, India had provided Pakistan evidence about linkages in that country to the Mumbai attacks. The evidence includes Kasab's interrogation, details of satellite phone used by the attackers and other material recovered from them.
