MP Professional Tax

Dear Sir/Madam,

I wish to inform that i am working in an organization in Madhya Pradesh & has joined in August 2014 and my annual salary is close to INR 3,60,000 so as per details searched about Professional Tax ie.. Rs.2,500 (Rs.208 per month for 11 months and Rs.212 for the twelfth month) should deducted annually but i wish to inquire that as per Rule Rs 208 should be deducted per month but they are deducting Rs 500 in each month. And i have been told that irrespective of the fact that i had joined in August 2014 , the organization will deduct Rs 2500 till Feb 2014 rather than deducting it on Prodata basis.
Hence i would appreciate if you update me regarding the actual process deduction. However i wish to inquire the following method:-
Aug'2014 till Feb'2014 = 7 months x Rs 208 = Rs 1456
Besides this, i would appreciate if you could also update regarding the significance of Salary Slip as till date i hav not been given the Salary Slip.

Regards,
Ambuj