You have not mentioned your basic salary as PF is deducted on basic salary. PF is to be deducted at 12% of basic salary plus dearness allowance.
Believing that your basic salary is more than Rs. 15,000. You will have to pay a minimum PF of Rs. 1,800 which is 12% of Rs. 15,000.
As per provision of Employee Provident Fund Act, 12% PF has to be deducted from basic salary. However you have the option to limit this deduction upto Rs. 15,000 as your basic salary. So you can reduce your PF deduction upto Rs. 1800.
You can ask your HR department to reduce your PF deduction. But mind that even employer share will be reduced by same amount.
If your CTC does includes equal employer contribution and not in amount, you over all earnings may go down.