''I'm hoping of a victory as I am being supported by various clubs,'' Bajpai said after the filing of the papers.
The retired IPS officer earlier alleged that Jagmohan Dalmiya, heading the CAB for almost a decade on the trot, had little time for Bengal cricket, as he was ''too busy'' with cricket politics at the national and international levels.
Incumbent Dalmiya also filed his papers today.
With the entry of Bajpai, who claimed he was emboldened by the support of a sizeable number of affiliate clubs, the CAB elections on July 27 would be a high-voltage drama.
The annual general meeting (AGM) of the CAB would also be held on the same day.
Bajpai's nomination papers were filed at the CAB office by his associate Samar Pal, who is running for the post of joint secretary.
The Dalmiya group has already nominated Saradindu Pal and Amitava Banerjee for the two joint secretary posts.