Which of the following points is/are "correct" with respect to the steps taken by the Securities and Exchange Board of India (SEBI) in July 2023?
A) The SEBI has mandated that all entities providing ESG (Environmental, Social, Governance) rating services to Indian entities to get a certification from it within 6 months w.e.f. July 3, 2023.
B) SEBI has also tightened the disclosure norms for listed companies with strict timelines and introduced criteria for determining the materiality of events w.e.f. July 15, 2023.
C) Disclosure time for important events or information, such as acquisitions, Scheme of Arrangement, share consolidation, and securities buyback, has been reduced from 24 hours to 12 hours.