Revised it return u/s 139(5)

Sir, please help me in the matter of e-filing a REVISED RETURN:

I have filed e-return for AY 2013-14 before the due date.  While efiling, I had committed following mistake:

I have not separately shown interest income from Savings Bank Account under the column Income from Other Sources but claimed thedeudction of the same under 80TTA.  My employer in Form-16 also, added Loss from House Property and Interest Income from Savings Bank Account and shown the net figure under Any other income reported by employee.

Now I have received the Intimation u/s 143(1) from CPC and while assessing my return the IT Authorities has not given the benefit under 80TTA and so I have to pay an amount of Rs.840 as balance tax payable (Otherwise my return is NIL tax payable/ refundable.  

Please advise me whether I can file Revised Return to rectify the above mistake u/s 139(5) of the IT Act or whether I can got for Rectification.  Kindly reply immediately.

Thanks

haridasan embran