Reporting financial institutions must register, obtain ITDREIN and file Form 61B electronically using digital signatures. Notification requires reporting financial institutions to register on the Income Tax e filing portal, obtain a unique ITDREIN per reporting entity category, register designated director and principal officer, and submit the Statement of Reportable Account in Form 61B (or a nil statement) via secure electronic transmission in the prescribed XML schema. Filings must be submitted using the designated director's Digital Signature Certificate and comply with validation, security, archival and retrieval procedures specified by the Principal Director General (Systems).