Kindly recheck your reply. I do not think that one can avail both, the HRA and Home Loan Repayment Interest component for the benefits for Tax exemption in the same financial year.
Could you please clarify? To make it more clear, I shall put it like this eg:
If one is getting an HRA of Rs 10,000/- per month i.e. Rs.1,20,000/- per annum and paying actual rent with reciept of Rs. 8000/- per month in a METRO then he will get an exemption of Rs.8000 X 12 = Rs. 96000/- and the balance Rs.24,000/- will be taxable.