Tenure
PosClimb - to answer your question about shelf life ( it sounds like we're a supermarket product ) -- I guess not long if the Indian airlines will start paying for their citizen's type rating. It might happen eventually but who knows when. Just focus on what you are there for and let the future sort itself out. You only need around 500 hrs to be marketable all over the world- remember that. But I'm sure that if you do well, they'll consider renewing your contract for 2-3 more years.
Remember, nothing is permanent, except the word CHANGE. Nuff said.
8 Ball