Feeling Stuck After Probation: How Can I Fairly Ask for a Pay Raise in a Private Company?

In September 2014, I joined this private limited company as a management trainee. During the interview with the head of corporate affairs of the company, he informed me that I would be working as a coordinator for the software (LMS) that they had just purchased. Initially, I was fine with this arrangement, but my initial training was not completed, and I had to move to a different department, which is KYC.

Now, in February 2015, I completed the maximum period of probation as mentioned in the letter provided during my joining. When I inquired with my HOD about it, he mentioned that it would be done in April during the annual appraisal.

Subsequently, in April, I filled out the appraisal forms, and today I received two letters, namely Re-designation and Appraisal.

While I was a trainee, my payment was 90k per annum. In today's appraisal letter, it has only been increased by 9k, which amounts to approximately 750 per month.

I believe that when transitioning from a trainee to a permanent position, there should be a change in salary, as discussed during the interview. However, they have only given me a 10% appraisal, which was across the board, without any specific acknowledgment for completing the probation period.

Question on Pay Raise Grounds

My question is on what grounds can I ask my company for a pay raise? Are there any laws for private limited companies regarding payments and remuneration?

Please advise on how to proceed in this case.

Thank you

"Now I believe that while shifting from a trainee to a permanent position, there should be a change in salary (which was also discussed in the interview). What is written in your appointment letter about pay? Verbal discussion has no real significance. Is there any company policy on the subject? Were there any other trainees/probationers along with you, and if so, what was their treatment regarding salary and increments? Is there any law for private limited companies regarding payments and remuneration?

I am afraid there is no statutory protection laid out for remuneration. What I can gather is that the company is not organized properly concerning training and the induction of trainees. You could request a meeting with higher-ups and present your point of view about pay fixation and increment policy."