Related party contracts require statutory register entries and board disclosure to record interests and approval details. MBP-4 requires recording related-party contracts and director-interested transactions with particulars including date, counterparty, interested director and nature of interest, principal terms, arm's-length status, board approval date and voting details, contract amount, shareholder approval where applicable, signature and remarks; and a separate register of bodies/firms in which directors have interests specifying entity, director, nature/change of interest, shareholding if any, date of change, and authorised signature.