Director Identification Number deactivation applies for duplication, fraud, death, incapacity, insolvency or KYC default; reactivation follows KYC filing. Rule 11 permits cancellation or deactivation of a DIN where it is duplicated, obtained wrongfully or fraudulently, or on the holder's death, unsoundness of mind, or insolvency. An opportunity to be heard is required before cancellation for wrongful or fraudulent procurement. A DIN may be voluntarily surrendered via Form DIR-5 subject to e-record verification. Non submission of prescribed KYC particulars triggers deactivation; reactivation follows filing the required KYC form with the prescribed fee.