saswatabanerjeeFirst, there is no legal validity of a commitment to work for a year (or any period) and the restrain imposed is not valid. It would be valid if you were given a specific training by external faculty that was paid for as a cost to the company (not on job training by seniors). The commitment from he company, however is legally valid and enforceable. You can't force them to keep you but you can force them to pay you the differential salary.
On the second paid, a communication in mail has the same validity as being on a paper. So the agreement would be valid, if it as not an invalid restrain (as explained above). The failure of the company to give you the promised role further makes the agreement invalid and more useless in law.
On the third point - BVG is always up to the employer. In india you have very little protection against negative BVG comments. The only way is if you know, have proof and you go to court, then you can win damages, but it is far stretched in terms of efforts and cost.
There is no solution to your problem. You need to negotiate or perhaps go to the to management and explain what happened and why you are leaving and communicate the HR's threat as being illegal and could land them in problem.
From India, Mumbai
email@example.comPl remember that fight in the Courts, is a waste of time, even you win the case over a period of decade, purpose will not be served.
My suggestion is go ahead with your decision to join prospective employer. The max current employer can do is, refused to give service certificate. As long as your pay slip is there, may show it to your prospective employer and request him to see your PF contributions in the previous company as a proof of your service.
Pl explain to the future employer, the reasons for not able to submit service certificate. It helps you in to two ways.
1. It talks about your honesty and integrity.
2. Your interest in the prospective employer.
All the best
From India, Hyderabad