Director KYC (DIR-3 KYC) is a mandatory compliance requirement for individuals holding a Director Identification Number (DIN) in India. As per MCA guidelines, every director must annually update their KYC details to maintain an active DIN and avoid penalties. The DIR-3 KYC filing includes personal information such as PAN, Aadhaar, email ID, mobile number, and address verification. This guide by eStartIndia explains the complete process of filing DIR-3 KYC online, due dates, documents required, fees, and consequences of non-compliance.