Release of provident fund of a closed/shutdown company – How to go about it ?

Sir,

I pankaj kumar choudhary,was working with M/S Radha Krishna Hospitality Services Pvt. Ltd. From 2004. Now The company has closed or merged with a different company . i want to withdraw my provident fund. i also want to know about my pf account no.DL/19231/2856, as i am unable to find any details about it online.

Thanks & Regards

Pankaj Kumar Choudhary