A peer review of statutory auditors of listed companies may have become mandatory from April this year, but the Securities Exchange Board of India (Sebi) is yet to come out with a notification on the same. This is essential as listed companies are regulated by Sebi. A peer review of statutory auditors of listed companies may have become mandatory from April this year, but the Securities Exchange Board of India (Sebi) is yet to come out with a notification on the same.