There are instances of those coming from the private sector becoming the regulator in India, though only a few ones and only recently.
For instance, the current chairperson of the Securities and Exchange Board of India (Sebi), Madhabi Puri Buch, is from the private sector. However, she was a whole-time member of Sebi for around five years before becoming the chairperson in March, 2022.
It took years for the securities market regulator to appoint a person from the private sector as chairperson since the Sebi Act was enacted in 1992 or a few years prior to that when the Sebi