Firstly, the company is a BPO or offshore entity- it is not an IT company as sold by many of recruiting HRs and Consultants.
Secondly, while you are paid in INR be ready that you will be expected to work upto standards of your counterpart in other countries who may be paid atleast 4 to 5 times of your wages. The same rule applies during ANNUAL APPRAISALS.
Thirdly, your managers onshore will not consider you firm’s employee rather you will face severe competion from many vendors that serve the firm. You may be an expert in your skills but remember there are no dedicated TRAINING programmes. and so gradually your skills will be outdated and not-so-smart vendors will outperform you - not to mention your market value will gradually decline.
Fourthly, if you join the organization, no Indian IT company will accept your resume unless you have’niche; skills. So be prepared that you intend to work in Bank for rest of your life.
Did I mention that you will be given option to’work from home’, but the Indian regulators do not permit that so you will end up having to come down to office.