sir please contact pf commissioner of your area. you have to give a strong complaint letter against yr ex-eplyr , application form with attestation of bank manager and bank pass books photocopy.if your ex-employer not responding, pf commissioner will depute a officer from his office to take sign of your employer, sign of ex-emlyr is only a formality, without which also, within three months pf amount will be credited in your account.you do not need to go any where, not even in pf office (or to your ex-emplyr). all these procedure can be done by drafting letters from yr home.