Nobel laureate Amartya Sen came out against Narendra Modi on Wednesday saying that he did not think he is a good prime ministerial candidate. "My reaction on Modi is fairly well known. I don't think he is a good prime ministerial candidate. Obviously he is very popular in some sections. He is very popular among the business community. That doesn't mean he is my favourite candidate," Sen told reporters here when asked about his view on the BJP prime ministerial candidate.