Any Indian who does the aforementioned course in China or in any other place on this earth for that matter, is not eligible to practice in India when he comes back. He also is not eligible to appear in any post garduate entrance examination. Shortly spaeking, he will not be able to register himself with the central or state medical council.
To do all this, he has to pass the FMG eligibility test conducted by the Goverment of India. It is a tough exam, and there are people who have wasted more than four years in cracking that exam. If one clears that exam, well and good.
I wish to seriously dissuade people from pursuing MBBS abroad. It is suicidal. It is not as cheap as one might imagine it to be.