They have no interest in giving us technology. They will only sell us stuff they will export, they already told us that, which was the point of DTI. They don't give tech even to their closest allies.
China can't threaten US power for at least 15-20 years, up to 2040. They need a full generation switch in technology along with surpassing the US economy by a significant margin, I suppose at least 3 times as big, in order to offset the US plus allies. They will at best become only a peer power within that time.
The next 10 years, by 2050, not just India, but even countries like Indonesia, Vietnam and Philippines will become powerful countries given their respective populations and economic growth. For example, Indonesia is expected to have a population of 300 million and a GDP that's 1/3rd that of the US by 2050. It will be top 5 global economic power. Vietnam and Phillipines are expected to have populations of 110 million and 150 million by then, which are similar to Russia and Japan. So their combined population of 550 million versus China's expected 1.1 billion will allow them to become peer adversaries to China. It's not so easy for the Chinese to supress their immediate neighbours alone, let alone India.
You don't have to worry so much about the Chinese. The world's headed towards a multipolar order. There are going to be at least 8 heavyweights; US, China, India, EU, ASEAN, Russia, Brazil, African Union and Mexico. There's unlikely to be another lone hyperpower like the US at least this century.