This belongs in the horror series of medical malpractice and bureaucratic inertia meeting in gruesome ways, right alongside the Kermit Gosnell fiasco.
One gruesome blood farming operation took place on an actual farm - men were kept in squalid huts, hooked up to IVs draining their blood into collection bags. Their dangerously low blood levels, along with the hot Indian weather and lack of food or care by their captor, a prominent local landowner, left them on the brink of death. It's not an exaggeration to say that the landowner took better care of the cows he harvested milk from than the human beings he harvested blood from.
Many of these men were drug addicts, lured by the promise of quick and easy money selling blood - not unlike the plasma selling some Americans turn to. But once they arrived at the farm of Papu Yadhav, the men found themselves trapped and turned into Yadhav's human blood banks. The locked doors kept them in, and after a few days of vampiric experimentation, they were too weak and anemic to even contemplate trying to escape.
On paper, everything looked to be in order...
And Yadhav ensured his operation had paid off enough people in the blood banks, hospitals and medical labs to keep blood flowing from his farm and money flowing into his coffers without a question being asked.
Yadhav's operation wasn't the only illegal blood farm operating in rural India, and the opening for a black market in blood there is being driven by demographic and cultural factors: a city whose medical infrastructure can't support a vast regional population, and Hindu superstitions warning against blood donation.