Mumbai: The Duleep Trophy inter-zonal championship would be held in South Zone from October 6 to 25 with the final scheduled at Chennai, as per the cricket board's official website.
The season is to commence with the Irani Cup clash between last year's Ranji Trophy winners Rajasthan and the Rest of India at Jaipur from September 21-25.
The three-team NKP Salve Challenger Series of one-day matches - featuring India `A', India `B' and last year's national 50-over champions Bengal - is to be held at Rajkot from September 29.
Ranji Trophy would commence on November 2 with all the teams divided into three groups in the league format, the board said.
The knock out stage is to begin on January 6 leading to the five-day final scheduled from January 26.
Full schedule of Irani, Salve and Duleep matches:
Sep 21-25: Rajasthan v Rest of India, Jaipur (Irani)
Sep 29: Bengal v India A (D/N), Rajkot (Salve)
Sep 30: India A v India B (D/N), Rajkot (Salve)
Oct 1: Bengal v India B (D/N), Rajkot (Salve)
Oct 2: Final (D/N), Rajkot (Salve)
Oct 6-9: North Zone v West Zone, Chennai (Duleep)
Oct 14-17: East Zone v South Zone, Vishakapatnam (Duleep)
Oct 14-17: Central Zone v To Be Confirmed, Hyderabad (Duleep).
Oct 21-25: Final, Chennai (Duleep).
Ranji Trophy group phase: Nov 2, 2012 to Jan 1, 2013
Knock out rounds: Jan 6-10 (quarter finals); Jan 16-20 (semifinals); Jan 26-30: Final.