Stratfor has a few article available to non-subscribers about the situation in Mumbai.

Red Alert: Possible Geopolitical Consequences of the Mumbai Attacks:

If the Nov. 26 attacks in Mumbai were carried out by Islamist militants as it appears, the Indian government will have little choice, politically speaking, but to blame them on Pakistan. That will in turn spark a crisis between the two nuclear rivals that will draw the United States into the fray.

India: The Need to React:

A massive and well-organized attack by militants in Mumbai, India, has left nearly 100 people dead so far, promises to cut deeply into India’s foreign investment prospects and threatens to rock India’s government. As India responds to the attack, its relationship with Pakistan will be front and center, and the potential for a destabilization of relations between the two geopolitical rivals is high.