Sinha, while seeking blessing from Suman's mother Usha Prasad on her 80th birthday at their home in Rajendra nagar here last night used the dialogue of Amitabh Bachachan in 'Deewar'.
"I do not have maa (mother) and that is why I went to seek blessings from Suman's mother," he said.
"We have family ties for a long time," Sinha said.
Suman had unsuccessfully fought against Sinha in the Patna Sahib seat in 2009 which had caused some 'strain' in their relationship.
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"The Congress tried to use its 'Chanakya budhi' against me this time again, but I said no," he said.
He said that the Congress had snared Bhojpuri film actor Kunal Singh who, he claimed, would repent as the party had a use and throw policy.
Suman, whose TV show 'Pol khol' besides a few Hindi movies were a hit, pledged his vote and support for Sinha.