Make up your mind in the line of reasoning.
Thank you, Arun_S, for that advice (or maybe it's an order, depending on whether it's coming from ADmin Arun or postor Arun..)
I reason first and
THEN make up my mind, I don't "make up my mind in the line of reasoning" and invent reasons later. (I know, I know, strange concept to many folks here

). The reasoning still holds, but I doubt that repeated explanation can have any effect on those who have already "made up their minds" long ago.
If China occupies large swaths of Arunachal Pradesh (and how much do you think they have ALREADY occupied??) it is DEFINITELY still going to be below India's "nuclear threshold". At most, India will order another patrol to "go and bring them down by the scruff of the neck" as the infamous Briagadier Clueless Singh ordered his brave men to do in April 1999. Most probably, Delhi will continue to pretend not to notice, as they have been doing for a long time.
NOTHING about that will change if India rushes in and tests a 1MT or 10MT or 100MT weapon. Well, maybe it will, I can't make up my mind... If India does NOT do anything that stupid, India may continue to build up a conventional air force etc. that will really deter a Chinese incursion, but if India follows the course that Arun_S and others have been clamoring for, and conducts tests of MT-level weapons, then the consequences will ensure that India has NO conventional deterrent to China, or Bangladesh, or to Bhutan, for that matter.
BUT... hey, who knows... certain political parties may come to "power" ( a loose use of the term, since they won't have much ELECTRIC power or ECONOMIC power.. or PETROL power for their imported cars, or money to pay the soldiers..) so I guess this course is fine and dandy to those who continue to advocate it despite the realities staring them in the face..
OTOH, AFTER India gets into the nuclear gang officially, any escalation of tensions with countries like China will mean that there is an established path towards declaring a National Security Imperative, while staying well within the bounds of the signed agreements. There will still be all sorts of economic pressures, but India will have the same access as China to the world media and legal structures, so it's a net advantage.
Sorry to have to cite logic that interferes with already-made Conclusions...