this is applicable for and from June 2017 non filers
if it so,. many would have filed their annual return for 17-18 and would have reversed the input not reflected in 2A
if so, later this notification, if missed out inputs found now is there any chances to claim as the annual return was the final return
No...... you cannot .
The order 2 already being issued specifying that credit can be claim for FY 2017-18 by 31/3/2019 & Moreover in annual return form you cannot claim any missed ITC