Your use of "Printing" before the edit had me wonder. Rapidly growing population under a one child policy? Comparable to India? How?
China's population is sufficient that no one will notice a few scientists missing. Definitely not beyond their borders. They'll make sure of it.
If this experiment was unsuccessful we'd never know about it and everyone involved would be incinerated.
I don't think you could pull that off in India, population or not. For all their corruption I want to believe they frown on disappearing people if anything for religious reasons.