ITR for A.Y. 2017-18

Bhargav Dhorajiya (69 Points)

20 June 2018  
I am from Surat, Gujarat.
in Surat there are some consultant who are filling ITR for A.Y. 2017-18 without any permission from department. and they file ITR in 1 day.
I want to know if any one know how they are filling ITR for A.Y. 2017-18 without obtaining any permission from department.
Is any one know then please inform me...