Senior Congress leader Ashok Gehlot on Thursday hit out at his party colleague Mani Shankar Aiyar and called him a ”sarfira” (mad person) after the latter was seen questioning the competency of late Rajiv Gandhi to become India’s prime minister. ”His statements about Rajiv Gandhi reflect the height of frustration. There is so much frustration in him. In such a situation, a person does not know what he is saying. Only a ‘sarfira’ can say such a thing about Rajiv Gandhi,” the former Rajasthan chief minister told reporters here.