3i Infotech ltd review: Not Provide FFS &relieving letter without any reason from 5 months

Dear Sir,
I have joined 3i consultancy services that is subsidiary of 3i info tech ltd on 15-June-2011 and resigned on 01-Aug-2013.The Notice period is define in offer letter is 30 days and i have served notice period 25 days and leave balance is 10 days. After this my project manager speak a lie regarding my notice period. He had told i am not serve the notice period.But i have all attendance details and resignation mail.3i infotech HR team speak, they will consider only one day notice period as per my project manager.I have many times contact to HR Team but till now i have not received my FFS & Relieving letter. I want to do a legal case regarding this.My emp Code is -68063(Om Prakash Rai) and mail id:[protected]@gmail.com.
Please get help in this matter and let me confirm what documents are required for register a case in Consumer Forum.
Waiting for your response.