When I read your prior post I was going to write a version of the last 2 para of this post of yours.
One way to read the many messages/signals coming out by Beijing is their realization, nit new but much stronger than before, that US+India+Japan can prove to be a formidable combination and not just militarily.
US/Japan are still the top dogs as far as cutting edge industrial and military tech. What if these countries helped India leapfrog into the league of China just by being open to tech transfer for a price of course. China has benefited a lot from tech. transfers form US and Japan in the past and hence it knows what that can do for India. Where this to happen just at the industrial level it will help balance China and its expanding influence.
Its is a different matter if the US and Japan will oblige India now or that India will be able to make the most of such an opportunity but just the prospect if that happening will create disquiet in Beijing.
One is too pacifist and the other too egotist to actively aid in India's rise.
Besides would you sharpen the sword that will one day strike you down economically??
Both are capitalist and are fully prepared to ride the rising Indian markets as well as the abundant opportunity to invest and make money and both seem very focused on the ever increasing tribe of the Indian middle class and its imagined capacity to spend.
Its the low risk, high return play that both have chosen and so far, it is paying off well for them. Unlike the britshits and the EU, still trying to come to terms with the new India and mired in the colonial mindset.
It is the very same low risk, high return play that also governs their military ties with India. Neither of the two is going to gift you with any military assets just because they have the need for you.
Contrast this with the way that both of these countries have treated and continue to treat the pakis.
As with vassals, they both expect their vassals to fight for their cause, vassals who are expected to bring their own dogs to the fight, dogs who are well fed, trained and obedient.
The japs are no less in the belief of their own superiority, no less than the amerikis or the hans.
Whereas India has been seen as a vassal state for centuries now, by the muslims as well as the europeans, hans, japs, muslims and the russians.
High tech is certainly not on their bucket list of things on offer to India.