What may work for the BJP is the growing resentment against V K Pandian, a bureaucrat-turned-politician who Jay Panda alleges has hijacked the Odisha government.
Exigencies of electoral politics and individual ambitions often stoke family feuds and sibling rivalries.
It said the election to Patkura assembly seat in Odisha will be held on July 20.
The BJD won 112 of the 146 assembly seats in the recently concluded assembly polls.
Patnaik, won his his home turf Hinjili by over 60,000 votes, while he was leading from Bijepur till early on Friday morning.
BJD managed to retain 112 seats securing another term for Patnaik in the CM chair.
The Naveen Patnaik-led party bagged 112 of the 146 assembly seats despite the Modi wave in the country.