Learned Mr. Vasudevan has clarified the matter.Please follow the advice.
You should immediately contact the nearest office of Regional PF commissioner and meet the authority with the details of your company,your PF number.
There were publications in media"The Hindustan Times" that the PF authorities have placed companies own trust and and EPF at par and rate of interest shall also be same.
You can visit www.epfindia.gov.in and you shall find contact details of CPFC and other PF officials of your area, area office, secretaries etc.
You can raise RTI.
After clarification, It is your choice to witrhdraw, however it is better to continue till the age of retirement since after 10 years, the member is eligible for pension and in case of withdrawl member is at loss.