One Person Company nominees must submit consent, identity details, declaration of eligibility, and signed proof for company records. Form INC-3 requires a One Person Company nominee to provide identification and contact particulars (including DIN where applicable, PAN, birth details, nationality, occupation, and address), attach proof of identity and residence, and sign a declaration confirming Indian citizenship, residency, lack of specified convictions or findings of fraud or breach in the last five years, non nominee status in another OPC, compliance with eligibility rules, and consent subject to possible withdrawal by the nominator.