As of April 2019, who is the Chairman of the joint working group of IRDA and NHA, formed to curb fraud in the Ayushman Bharat Pradhan Mantri Jan Arogya Yojana (AB-PMJAY)?

A

Dinesh Arora

B

Indu Bhushan

C

Subhash C. Khuntia

D

Nilesh Sathe