For revising any return of AY 2017-18 you don't need any notice because Upto A.Y. 17-18 there was law that return can be revised Upto 1 year from the end of relevant Assessment year [As per FA 2016]. So you can revise it Upto 31.03 2019.
Also if you have already paid the required amount as self assessment tax and no further tax is required to be paid and you received TDS later on then you could also File Rectification u/s 154 and refund would be allowed to you.
BUT I THINK YOU HAVE NOT FILED YOUR RETURN AT ALL. IN THAT CASE YOU NEED TO FILE CONDONATION FOR DELAY IN FILING OF RETURN.