Manoj,
For me long term bets have to have a fair amount of predictability and that is what I find lacking in business of Omkar. From whatever I have read about the company I find that it is just a commodity business having a good time. I wouldnt compare it with the likes of great pharma companies like ajanta, torrent, alembic, shilpa or other businesses I own like the HFCs.
I am not too impressed by the oft used word PATENT which is bandied about by Indian firms. The kind of patents Omkar boasts about are in effect just process patents and nothing much to brag about. If patents dont convert into higher sales and profits for the company it is no use.
The good thing I find about Omkar is decent management, and benefits of expansion which could keep the growth going for a couple of years or more.
Key monitorables include debt situation and working capital management.