Question: Who directed and composed music for the 2006 film that K. J. Singh won a National Film Award for Best Audiography for?
Sentence (from "K. J. Singh"): Kanwarjit Singh Sawhney, a.k.a. K. J. Singh is an Indian audio engineer based in Mumbai who won the 54th National Film Award for Best Audiography and Filmfare Award for Best Sound Design with Shajith Koyeri and Subash Sahu for his work on the 2006 film "Omkara".
Relevant evidence: Yes