Disputed Full and Final

Respected Sir, I joined an International School as General Manager Admin on 21 August 2014. The Trustee on 21 October 2014 disabled my company mail ID, and phone internet. I got a call from HR to resign. Since my salary was held up I resigned. There was no negativity on my part but still they asked me to resign. I resigned on 28 October 2014 and got my salary check in first week of December. No handing over, no relieving letter received by me till date. They credited my basic pay as notice pay and forfeited the rest amount. Also they have not given me salary slip till date. My provident fund status is also not known to me. Kindly help to get peace of mind as they have devoured my money. The appointment letter states that one month salary is admissible. I have sent 16 reminders to them till date.