India is already exploring all possibilities (Read below). I agree all possibilities including some misguided right wing saffron extremists might be behind it should be investigated.
What is irritating is the fact that people in Pakistan keep referring to RSS, VHP and Shiv Sena terror groups. I'd like every Pakistani here to look at MQM and ANP and compare them to the Indian political parties referred to here as terrorists. They have declared "jihad" on your own people calling them Mujahirs! These are political parties we are talking about and they will indulge in Pakistan bashing just like political parties in Pakistan do.
Nothing aimed at you personally Muse but I hope Pakistanis here do a little bit of fact finding before coming out with such ridiculous statements.
Prithviraj Chavan: No, I have instructed that no theory, no group, no suspicious thing should be ruled out. And
there is a tendency of late, and you have seen a number of incidents where we jump to a conclusion that a particular group would have done it. So, I told police not to do that, but to look at almost remotest possibility also should not be given up. There are many, many teams that have been created. We have ATS which is working at it. Mr. Maria is looking at the full process.
Full transcript: Couldn't contact police chief for 15 minutes after Mumbai blasts, says Chavan