Change in the policy in the sense that till now we had thought that the whole Nuclear Weapons would deter any outside threat or non state actors but that wan't the case in 26/11 which added a whole new scenario to the ordeal. Till this point the government had not thought that the terrorist would take such bold steps, similar to what the US had been doing before 9/11. The whole NFU policy would be just be revised to see what more can be done, because lets face it another 26/11 style attack would spell disaster for the region. Since this time the Indian government would have to grow balls and take some action otherwise the people would be at their throats. So the main policy would be seeing how to better deal with issues regarding conventional warfare and see if the whole thing affects the NFU policy. But personally, I don't think there would be much change in the policy, rather than more towards military doctrine changes.