The person who said that ex-pats are an endangered species ,in the far east, is a wise man, expectations of more than 4 years are a pipe dream, its not personal, but what is hard to take is the "we want u at any cost" attitude that prevails at 1st. That causes a feeling of indispensibility, but the facts are you are in someone elses country, and no matter how friendly the inhabitants seem to be you are taking a well paying job away from a local.
So obiviously the 1st to go will be ex-pats no matter what the reason.
Personally i worked for Deccan and then Kingfisher for 4 years, then happily it was time to retire, the "send off" that the Chennai staff of KFA gave me was amazing so my feelings as an ex-pat about India are all good.