Regional Ayurveda Research Institute, Gangtok (under CCRAS, Ministry of AYUSH, Government of India) Contact Information: Dr. A.J.V Sai Prasad, Assistant Director In-charge Regional Ayurveda Research Institute, Tadung, Gangtok, Sikkim-737102 Phone:03592-231494 Email: arri-gangtok[at]gov[dot]in