Tathya dot com pvt ltd — they don't give me my provident fund money

Address:

North 24 Parganas, West Bengal

I am Chandan Ghosh, I am from halisahar, i am a MBA person. I was at Tathya Dot Com Pvt Ltd as a Data Entry Operator at 2009 sep to dec. at December they stop my job.after this month i have round more than three and four time of one year they return me.after that day they change their address, but webside is not update the new address. so we can not get that time pf amount.