Conveyance deed of housing society

The discussion revolves around a housing society federation with four registered societies where the builder is ready to execute the conveyance deed, but the federation insists on including all four societies. The core issue appears to be the builder's hesitation, prompting questions about whether Occupation Certificates (OCs) have been obtained for all societies and the builder's specific reasons for this reluctance. More detailed information is needed to provide a definitive opinion.