In his police complaint, Yogesh Bhati alleged that former MLA of Sahibabad constituency Amarpal Sharma had hatched the conspiracy to kill his brother, they said.
Gajendra alias Gajju and his friend Balbir Singh Chouhan were shot at by two bike-borne attackers at Khora colony last afternoon. They were rushed to a hospital in Noida where doctors pronounced the BJP leader dead on arrival, the police said.
"We have received a complaint from Gajju's brother Yogesh in which he alleged that the former MLA, Sharma, had planned the murder as he was intending to contest the chairman election of the newly-formed municipality of Khora.
However, Sharma rubbished the allegations, saying that the BJP was trying to "taint" his image and he claimed that he had no role in the killing.
He said he would take up the matter with Uttar Pradesh Chief Minister Yogi Adityanath and would infrom the CM "how a history sheeter criminal's family was attempting to damage his popularity".
The police today retrieved the CCTV footage in which two bikers are visible on the spot of shoot out, the SSP said.