PR, I knew it but never got round to listening to it. Classical-music based movies usually end up strong favourites with national award committees - all 3 of IR's national awards were for movies very deep in classical music quotient - and in recent times, I have developed a bias against such callous, un-nuanced evaluation of music by NA committees.(Annamayya over GURU in 1998 was the trigger, swarabishekam by vidyasagar a few years back - both very lightweight choices with only the classical base going for them).
If Singeetham's Thyagayya project kicks off with IR as planned earlier, oru NA urudhi for IR. Unless Sathish Kaushik(or an equivalent from bollywood) heads the committee in which case Rajesh Roshan's nursery rhymes from the latest kiruthigai hit will get the award.