Notice for defect u/s139(9) error code 31- no Account Case section

Shivani Bhardwaj (CA Final Student) (166 Points)

24 December 2016  
I have received a notice from department stating that there is defect in the ITR filed for AY16-17.
Assessee has filed ITR-4 being a tuition teacher. She does not maintain regular books of accounts, so presumed income is considered.
In the return filed, I have shown gross profit and net profit, where regular books of accounts does not maintained by the assessee, but nothing is shown in balance sheet pt no 6 i.e no account case section, where columns are: sundry debtors, sundry creditors and cash balance amount
the defect in the notice is taxpayer having income under PGBP but has not filled B/S and P/L account as per sec 139(9)(f) r.w.s 44AA

For last AY also, I have filed the return on similar lines but no objection came in that year.

Please suggest what has to be done. Whether I need to agree with defect and file the rectified return, then what will be the rectification?
or I need to disagree with the defect, then what reason has to be stated in the remarks column

Please reply....it's urgent
Thanks in advance.