Under what source? Which ITR ?

As such not linked. But based on AIR reporting, if any, query may be raised for any of the year/s.

Yes, as a doctor, a specified profession as per sec. 44AA, you are eligible to declare your professional earnings u/s. 44ADA.

As on today, you cannot file ITR for AY 2017-18 !!

Sir Then how it shall be filed?gross receipts are around 550000 and 50% comes to 275000..do i need to consider any deductions..but no expense is allowed ?