Mahindra Satyam — AT_78707 PF number not known

Address: 560100

Hi Sir,
I am an Ex employee of mahindra satyam(Satyam then)worked from 1 sep 2008 to 17 april 2010, my id was AT78707, Trained in ELTP(Entry level training program) in Satyam's office in Bangalore, electronic city phase 2.

I don't have my pf details with me and for past a couple of years i have sent numerous mails to exit helpdesks with no vain.

Please help me out or i am left with no other option but to file complaint on PMO or consumer forum.