Defective return us 139 (9) invalid return

sainathkatkam (Ser.Accountant) (33 Points)

12 March 2017  
I have my file return for the asst year 2016-17 . defective return us 139 (9) error code 31. but many time send mail to correct but in time not reasoned is treated invalid return. but how to treated valid return ple tell me.