National Film Award for Best Film on Environment Conservation/Preservation
 ( Rajat Kamal and 30 , 000 ) and director Jahnu Barua ( Rajat Kamal and 15 , 000 ) for their Assamese film "Bonani" for the story of a lone forest officer fighting the illegal timber mafia and protecting rights of uneducated tribals . 
<triplet> Bonani <subj> Jahnu Barua <obj> director