Dear Malini,
Since you are already a member of EPF, you cannot be deprived of EPF benefits. However, even if your PF chargeable salary exceeds the ceiling, i.e., 15000/-, your employer still has to consider the same or may restrict the EPF contributions to 15000/- (ceiling limit) depending on your employer's discretion.
Thanks & Regards,
V SHAKYA
HR & Labour Laws Advisor