shanx, to put things into perspective. upto 50 rated ATR F/o's and a similar about of A320 rated "indian" f/o's are currently ground by KF. it would be suicidal for you to go ahead and get your self a rating with just a CPL in hand. unless ofcourse you have an oil well in the back yard or something.
it seems a lot of people are doing a rating over their basic CPL without first converting their license to an Indian one. they think it's a short cut, but it's not going to get them anywhere.
the days of "Indian" F/o's flying on an FAA CPL with a A320 rating are long over ... companies are down sizing. the last thing they want to do is get a FATA for a low time time guy ...