National Film Award for Best Film on Environment Conservation/Preservation
Malayalam film director Dr . Biju went on to receive the award in 2013 for his film "Perariyathavar" produced by Ambalakkara Global Films and again in 2015 for the film "Valiya Chirakulla Pakshikal" produced by A . 
<triplet> Perariyathavar <subj> Dr. Biju <obj> director <triplet> Valiya Chirakulla Pakshikal <subj> Dr. Biju <obj> director