Maragadha Naanayam (transl. Emerald Coin or The Killer Diamond) is a 2017 Indian Tamil-language fantasy comedy film written and directed by ARK Saravan in his directorial debut. The film stars Aadhi and Nikki Galrani while Anandaraj, Munishkanth, Daniel Annie Pope, Mime Gopi, and Kota Srinivasa Rao play supporting roles. The music was composed by first-timer Dhibu Ninan Thomas with cinematography by PV Shankar and editing by Prasanna GK.

Directed by ARK Saravan
Written by ARK Saravan
Produced by G. Dillibabu
Starring Aadhi
Nikki Galrani
Cinematography PV Shankar
Edited by Prasanna GK
Music by Dhibu Ninan Thomas
Production
company
Axess Film Factory

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