What is "adharvam"

Adharvam ( Malayalam: അഥര്‍വം) is a 1989 Malayalam drama film directed by Dennis Joseph and written by Shibu Chakravarthy, starring Mammootty, Ganesh Kumar, Charuhasan, Silk Smitha, Thilakan, and Parvathy. Mammootty played the role of Anantha Padmanabhan, an expert in mystic tantric rituals. The songs and background score of the movie were by Ilaiyaraaja.