Cpf

I have worked for a govt aided school for 10 years and now I'm working in government school as a teacher. The previous aided school management deducted CPF amount ie 10 percent of basic pay every month from my salary but not deposit the deducted CPF amount in my CPF account.when I talked to the mgt in this regard they argue that my appointment bas been done after 2004 and as per govt instructions I have to be covered under NPS and a separate account is to be opened and when I got my NPS account the mgt started to deposit the current amount and when I have asked for my previous deducted CPF amount the mgt provided a document/register page Xerox copy to me on which affixed my signature on the revenue stamp before the amount of rupees 110000 received cash by me on account of my deducted CPF amount.But I haven't received such amount and never signed such a document that the mgt provided and when they have asked to provide the original document then they have handed over a FIR copy in which they have stated that the school record has been losted . Respected sir/madam you are requested to please help /guide me.