I wouldn't say its a scam. Not with India being home to the world's largest population of diabetics and growing.
In fact a doctor I am very close to is doing some great work on juvenile diabetes. Like most everything in medicine, you speak to 10 doctors, you will hear 10 opinions.
The internet of course does the rest and makes most lay people into doctors themselves.
Those who are left out, Modi and his motely crew make them doctors.
Its a happy place we are in currently in India where medicine is concerned.
Cheers, Doc