I've been looping on this song for the last couple of days - Oh Prema Devathe from Gulabi (Kannada), sung by IR and Chitra. Another hauntingly lovely duet, possibly from the mid/late 90s. I'm not able to place what ragam this falls into. The scale seems to be S G2 M2 P D3 N3 S, S N3 D3 P M2 G2 S (or replace the G2 with R3). There doesn't appear to be a ragam with this aro/avaro. The closest match is one of Rasikapriya's janya, Ishtārangini - S R3 M2 P N3 S, S N3 D3 P M2 G3 R3 S, but this has G3 in it.
There's some resemblance to Kannammaa kaadhal ennum kavidhai solladi at some places, but Kannamma has a sure R2 in it while the Gulabi song doesn't.
When the charanam goes prema vaahini, it kinda gives a lag in the tune, but he then follows it up with a brilliant pallavi connector!
http://music.cooltoad.com/music/song...3368b14bdab6d4