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Paul Samrai and a colleague approached transplant clinics and hospitals in India, particularly in the Punjab area, and asked for help with the British end of things.
His concern is that while money might buy you the best possible care, the donors themselves do not get the same treatment. "If I've got the money they will do everything necessary, the best hospitals, the best doctors.
"But what about the care for the donor? The record is abysmal. Its more dangerous for the live donor having a kidney removed than it is for the man receiving the kidney," he said.
The price? Anywhere between £10,000 and £50,000 depending which area of India you go to. "There are people in the UK who will pay that."
And doctors who will arrange it. Says Samrai about his undercover operation: "I was shocked, shocked at how easy it was to do."
In 2002 Dr Makkar lodged an appeal against the decision of the General Medical Council to strike him from the medical register.