44ada error code 89 (notice u/s 139(9)of income tax act)

I am a software professional working from India for an Australian company as contractor. Last year I filed my Income tax under section 44 ADA with NOB as '703 - Consultancy service' 

And now I got a notice (Notice u/s 139(9)of Income Tax Act) from income tax department that its defective.

Do you think that by changing the NOB to '607 - Professional - Others'  would solve the problem  ?

While filling the X M L, its asking 
A22. Return filed under section ? 
Should I select '18 - u/s 139 (9)' or '17 - Revised Return - 139 (5)' ?

A24. "Whether original or revised return?" 
Should I select 'Original' or revised ?

I thought of selecting 18 - u/s 139 (9)  as the notice I got is for 139 (9), but when I select 'Revised' then return filed under section is automatically changed to 17 - Revised Return - 139 (5). 

Could someone shed some light on this?