Dubey was climbing steps to the dais at a function in the Banda Assembly constituency in the district when he collapsed.
He was rushed to the Banda Primary Health Centre from where he was taken to a private hospital where the doctors declared him brought dead.
BJP district media in-charge Naveen Bhatt said the last rites will take place at his native village Tendudabur tomorrow.
Chief minister Shivraj Singh Chouhan condoled Dubey's death.
Disclaimer: No Business Standard Journalist was involved in creation of this content