Dear Gargi,
You mentioned that your organization is "YET TO APPLY for PF," then why so much confusion? When the organization is not covered under PF, is there any ACT/Law you are referring to wherein you can show "Provision for PF" as a part of Gross Salary? Why is it necessary to show such "Provision," or what is the objective behind such practice?
Also, showing that in the salary slip is altogether a different subject. The salary slip is a documental proof of what an employee earns, i.e., his gross income less his share of contribution. Here you are confusing it with CTC, where the company mentions each and every penny spent on an employee. I say so because you've mentioned that the Provision is only towards the company contribution.
To sum up with seniors, you might invite trouble unless you have enough support to prove this practice.
Regards,
Gargi