Indian-American Nobel laureate Abhijit Banerjee, who was called "totally Left-leaning" by union minister Piyush Goyal, today told NDTV that the commerce minister is "questioning my professionalism." Piyush Goyal, addressing a press conference on Friday, had said, "Abhijit Banerjee won the Nobel prize, I congratulate him. But you all know what his understanding is. His thinking is totally Left-leaning. He had praised the NYAY scheme effusively, but the people of India totally rejected his thinking."