Welcome to the forum. Yes, the songs you have mentioned are extremely catching. Perhaps the best selection for this Diwali. EnnavohEnnavoh song is said to be a fixation of IR's 80's song. Read somewhere in the net.
Lets explore further.
This song came about a couple of years back. A blatant lift. One should have patience to hear that song Enakkoru snegithi is somewhat good. Most of his songs are direct copies from Punjabi song albums. I like kadavul of the unusual thoughtful inline theme.