Evidence on ISI role in Mumbai bombing 'not clinching': India

Police last month blamed Pakistan's Inter-Services Intelligence (ISI) and militant group Lashkar-e-Taiba, which is fighting Indian rule in Kashmir, for the seven bombs, which ripped through commuter trains and platforms in Mumbai.

Both Pakistan and Lashkar have denied any involvement.

National Security Adviser MK Narayanan said while the evidence was as good "as we can possibly get in terrorist cases", it could not be called clinching.

"We have connectivity, linkages, confessions. We have a number of arrests which are pretty good," the official told the CNN-IBN television news channel in an interview which was to be broadcast later in the day.

"But there are pieces of the puzzle which are not available. I would hesitate to say we have clinching evidence, but we have pretty good evidence," he said, according to excerpts of the interview released by the channel.

Narayanan said the evidence would most likely be presented to Pakistan during the mid-November talks between the foreign secretaries of the nuclear-armed rivals.

The foreign secretaries are meeting in a bid to revive a peace process, which was put on hold by New Delhi after the blasts.