However, Rai claimed that he was helping a family whose house was "illegally" acquired by the former Ansari.
"Ansari illegally acquired the house of Manzoor Ahmed with the help of his clout in the administration late on June 4," Rai said.
Ansari said he has written letters to Mulayam and chief minister Akhilesh Yadav to end his life along with his wife Shehla Parveen due to "immense pressure".
"I have sent letters addressed to the SP chief and chief minister through Varanasi SSP and district magistrate's office on Wednesday as there is an attempt to harm my reputation through this incident and I am under immense stress," Ansari said, adding that he has also complained to the district authorities and police and was awaiting a response from them.
Rai, when contacted, said, "Ansari illegally acquired the house of Manzoor Ahmed with the help of his clout in the administration late on June 4, though the Allahabad high court had stayed any such move on the property," Rai said.
Since June 5, the family is sitting on 'dharna' against this action and he is supporting them by remaining present as "Ansari has done a wrong thing" and the protest would go on till the house is restored to Ahmed, Rai said.
The administration has sought the papers regarding the high court stay on the property from Manzoor Ahmed's family.