Just a little correction, credit goes to pmukherjee for post #28.
Again, you are correct, armies do plan for the worst case scenario - "Plan for the worst, hope for the best". Also like you say, our peers Russia and China will probably not get involved in a conflict between India and Pakistan but will certainly try to influence it.
What me and pmukherjee are trying to say is that India's long term ally, Russia is no longer the power that it was in the 80's and 90's. The relationship between India and Russia now seems to be more of a equal "partnership". PAK-FA project is a testament to this. We need their systems and they need our funding, it works perfectly well. However the relationship between China and Pakistan is different. China sees Pakistan as a strategic asset and Pakistan looks to China for help on the international stage. With both countries sharing a hostile history towards India, wouldn't you say that it's only natural that India builds up her defences against both her adversaries seeing as Russia is no longer the force that it was?
Regards.