return is not filled correctly in ay 2017-18

A return is filled by any other person in which assesse intt on h. P. Is not claimed and income is not as per 26 as so after processing refund is not claimed and a intimation is recd for balance amount payable. E-proceeding u/s143(1) is open on portal. Now what is best option to claim refund and income showing as per 26 as