My very very fair opinion about the movie is that it's just a one time watch movie. Personally I don't think I have patience to watch it again. But those who liked Drishyam part 1, should go for part 2.
Few scenes seem unnecessary and irrelevant. The crux of the whole sequel is in last 30-40 min. Rest all is a big timepass.
After watching part 2, I seriously thought that Vijay Salgaonkar is so intelligent thay actually he should have been appointed as an agent by RAW ๐