Really TEL's are your second strike!! As I said massive punitive retailiations entails network and command sites, the idea is to neutralize command stations for and negate all launch codes and command structure, I doubt that TEL Nukes are preprogrammed and armed sitting to fly on base commanders order, if thats the case then least of your worries is India.
Back to threshold argument, Pakistani army has a very striking streak of self preservation, It showed the same with one of the largest unilateral surrenders in the history of warfare. Compunded by the fact that everytime pakistani looses, the Army gets stronger, 65,71,99 all points to the same. If push came to shove and all thresholds were crossed, based on historical trend, Pakistani army would prefer to call for surrender and retake power for another couple of decades and the cycle will continue instead of obliterating itself.
General Sunderji maintained that: "This was, is and always has been a training exercise. I can't answer why there have been misperceptions about it in some quarters." IIts a shame that pakistan made a hue and cry of an exercise that they were duly informed of. And please do enlighten me of the other things?
That sums up op brasstacks, the rest that you mentioned like parakram and mumbai attacks, again for the nth time points to India's reluctance to attack pakistan. Pakistan is a formidable force, and will amount to insurmountable losses on a poor country like India, and thus is pointless and has no gains whatsoever. Fighting Pakistan for India is like brocolli for kids, we dont want it, but you keep insisting you cant....