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Glossary

DIN

What DIN means, where you will meet it and what it means for your business.

Written by the BizExpress team. Last updated 19 September 2026.

DefinitionA Director Identification Number (DIN) is the permanent 8-digit number every director of an Indian company must hold, allotted by the MCA and used in all company filings.

No one can be appointed a director without a DIN. For a new company, up to three directors get their DINs allotted through the SPICe+ form itself, so no separate application is needed. An existing person joining a board later applies through Form DIR-3 with identity and address proof, signed with a DSC. A DIN is issued once for life and stays the same across every company you direct. What it means for you: keep it active. Each DIN holder must complete DIR-3 KYC by 30 September every year, or the DIN is deactivated and a ₹5,000 fee applies to restore it. A deactivated DIN blocks every filing that needs your signature, including AOC-4 and MGT-7A, so the penalty compounds quickly.