<h1>Director identification number requirements: digital signature and PAN/passport verification with mandatory online approval process.</h1> Allotment of Director Identification Number requires practitioner digital signatures and online approval; DIN e-forms must include mandatory identity fields-name, father's name, date of birth, PAN for Indian nationals and passport for foreign nationals. Existing DIN holders who have not furnished PAN must file the DIN e-form by the prescribed deadline or their DIN will be disabled and they may face penalty. The measures aim to enable system-based examination of e-forms and prevent duplicate DIN allotments.