"It seems that Alvi has lost mental balance..If he needs we can provide him medial help," Hasan told reporters here.
Describing Alvi as supporter of "murderer of muslims"--Narendra Modi, Hasan said how can a person like him make a statement against Yadav, who put all his strengths to save Babri mosque in Ayodhya.
"Alvi had voted in support of Narendra Modi in Lok Sabha when voting took place to remove him from the chief ministership of Gujarat after riots," Hasan claimed.
"I did not understand why Congress has taken Alvi," he added.
Alvi sparked off a controversy yesterday after he termed the SP chief as the "biggest agent" of BJP.
"I don't know if you would like it or not but I have been saying it for the last 10 years that if there is anybody who is the biggest agent of BJP, it is Mulayam Singh Yadav. If anybody dances to the tunes of BJP, it is Mulayam Singh Yadav," Alvi, the Congress spokesperson, said addressing a public meeting last night.