Kanchan seva 

Dr. Chhail Bihari Sharma -- President of Kanchan Seva Sansthan at Udaipur Rajasthan have been working since 20 years serving lakhs of people for free of cost, organizing free camps in many states of India and in foreign countries such as London, USA, Nepal,Kenya,etc.
Telegram group link-
https://t.me/kanchansevasansthan