Section 20(2)(i) in The Companies (Management and Administration) Rules, 2014
(i)"agency" means the National Securities Depository Limited, the Central Depository Services (India) Limited or any other entity approved by the Ministry of Corporate Affairs subject to the condition that the National Securities Depository Limited, the Central Depository Services (India) Limited or such other entity has obtained a certificate from the Standardisation Testing and Quality Certification Directorate, Department of Information Technology, Ministry of Communications and Information Technology, Government of India including with regard to compliance with parameters specified under Explanation (vi);