Who among the following legal experts chaired the Ad-hoc Committee on the Supreme Court in the Constituent Assembly layout, despite not being a formal member of the Assembly?

Explanation

S. Varadachariar was a former judge of the Federal Court and an eminent jurist. He was chosen to chair the Ad-hoc Committee on the Supreme Court to infuse deep expert legal advice into the judicial setup architecture, even though he was not elected as a regular member of the Constituent Assembly body.