QUARY FLAGGED PAN CARD NOT FILE RETURN

PLEASE SUGGEST ME YE MSG AAYA HE OR IS PAN PE KOI INCOME NAI HE AUR USA ME STUDY KARTE HE
SO HOW TO RESPONSE THIS NOTICE
Attention (BDMPXXXX1F), Your PAN has been flagged for not filing of ITR for FY 2018-19. Please file your ITR or submit online response under e-Campaign tab on Compliance Portal (CP). Access CP by logging into e-filing portal (My Account) - ITD
PLEASE SUGGEST ME