HRA and Rental Income from houe properties in same ITR

Dear Sir, I have 2 house properties (1 co owned with my wife but loan portion entirely paid by me) . In same city I have office and my daughter's school in different area so I am staying in rented apartment. Details as below: House property A - Owned - Rental Income - 40K (NET NAV ) House property B - Owned - Rental Income - 110000K (Net NAV) House property C - (Taken on rent for self) - Rent paid - 246000 All three houses in Pune only. For A there total Principal amount paid 6 L, Interest paid 3K (loan closed). Kindly if you could guide me how do I treat this for my income tax purpose. Queries: 1. Is it possible to include rental income from both A and B to my total Income and claim HRA benefit too for C? 2. If I sell of house A (which is purchased in 2013 Aug), how will I trace back how much deduction I had taken and revert it , since I had filed returned on my own. If I purchase entire profit amount Capital gain bonds will I still have to reverse this benefits or not required then?