Dr. Uniyal is one of the most experienced and prominently known experts of Ayurvedic Herbs in India. He earned A.M.B.S. (Ayurvedacharya); Ayurved Bhaskar Charak Samhita and Netra Vigyan with a specialty in Dravyaguna. He served as Director, CCRAS, Ministry of AYUSH, Govt. of India as well as a Senior Consultant, Medicinal and Aromatic Plants of Govt. of Uttarakhand. He is also a member of Ayurvedic Pharmacopeia and Fellow of National Ayurveda Vidhyapeeth, AYUSH Ministry, Govt. of India. Formerly, he served as Technical Consultant, Ayurveda in Govt. of Himachal Pradesh and Member of National Medicinal Plants Board, Indian System of Medicine and Homeopathy, etc. Dr. Uniyal is an author of more than 50 useful and informative books of Medicinal and Aromatic Plants. Among them, a few books are Medicinal flora of Garhwal Himalaya; Ashtang Samgrahki Vanoshadiyan evam Vargikaran; Laddakh ki Sanskriti evam Paramparagat Tibeti Chikitsa Pranali; Bihar ki Adivashi Jadibootiyan; Sanskriti Sahitya me Paryavaran evam Kalidaski Vanaspatiyan; Prayogatmak Abhinav Dravyaguna Vigyan; Bharat ki Jadibootiyon ka Krishikaran; Uttarakhand Himalaya ki Vanoshadhiyan evam Khanij; Ayurved Anusandhan Darshika; Uttarakhand him shikharon par divyasanjeevani aushadhiyan; Uttarakhand vanoshadhi darshika; Himalaya luptprayah vanyajantu kastoori mrig evam mahoshadi kastoori, etc.