Why Most Employers Don't Deduct Pf During Probation Period

Dear US Sharma & Shrikant Sir,
First of all I regret for not sharing proper details. And I believe whatever discussion happened on this post by all of you is proving us knowledge on all aspects and we are learning by it. So please dont consider as if you both are arguing. What ever you both have shared is a knowledge for we readers.
Further as per your query on my offer letter is is mentioned "Salary" with bifurcations Basic, HRA, DA, Conveyance, Medical Allowances, Special allowances and my salary is above PF slab.
But PF part both sides is not mentioned on offer letter and verbally told to me that it will start after completing probation period.
Thats what I was wondering why so. PF should start from very first day in case of permanent employee.
Why a condition it will start after probation?
Lets say after confirmation they will start but should it be from first day or from the date of confirmation/
In that case can I raise voice against it?
What are my rights as an employee in that case?
Please Guide.

wonderful #ANNONYMOUS
salary limit is above the ceiling limit
at the time of interview and signing the offer letter the employee did not bothered to "raise voice" but accepted it with smile, and i m very much sure that in his /her CV and rejoinders, there is no mention of earlier PF details
there is certain amount added in your salary compartment, as "special allowance", have you even bothered to think about it ? why this is added ? and why this is equivalent or at par slimier to PF amount?
request you all, not to make this platform as complaint box or place to vomit personal grudge expression, let it be useful to share knowledge and benefit of both employee and employer.

Who has personal grudge? Me? I even don't know you and don't want to know person who keeps on arguing on wrong lines Period! Vomit? Speaks volumes about you.
Salary under PF act means only basic & DA. Now there have been judgements about inclusion of all allowances for PF purpose. But let's not get into all that. If your basic is Rs. 15000 or less per month, employer has to deduct PF from your salary from your first pay. If it is more, it is employer's wish whether to cover you or not.

@Shrikant & @Sharma
I request you to just leave the discussion. The query was only as why PF is not been deducted at probation & I have shared the right views for omitting PF wages at probation.