The new format replaces the earlier Form CRL-1, expanding required disclosures to include CIN, registered office, email ID, total layers, and detailed layer-wise particulars of all subsidiaries and holding companies. CRL 503We will be back online soon! The Ministry of Corporate Affairs has amended the Companies (Restriction on number of layers) Rules, 2017, substituting Form CRL-1, effective July 14, 2025. Form CRL-1 is a document that some companies must fill out to provide information about their subsidiary structure. This is necessary when a company has multiple levels of subsidiaries, meaning they own other companies that also have their own subsidiaries.