The National Financial Reporting Authority (NFRA) has requested audit affiliates of Deloitte, EY, KPMG, Grant Thornton, and two Ahmedabad-based CA firms to provide information regarding their audit practices while auditing Adani companies. The Adani Group has stated that it has followed all relevant accounting standards and laws. NFRA has been monitoring the Big Four firms for the past 18 months as their affiliates audit most of the top listed companies in India. This move by NFRA may have been triggered by Deloitte's resignation as Adani Ports' auditor in August, following accusations of financial inaccuracies.