Ganguly, who returned home on Thursday after his side's dismal shows in the tri-nation tourney in Netherlands and the NatWest Trophy and ICC Champions Trophy in England, spent around two hours at the Eden Gardens on Sunday.
The Indian captain did some stretching exercises, ran a few laps and then spent a long time at the adjoining gymnasium.
Seeming determined to play his part in arresting the team's recent downslide, Ganguly had hit the Eden Gardens turf on Saturday also and followed a similar routine.
India play the first of the four Tests against the Aussies at Bangalore from October 6.
The Board of Control for Cricket in India (BCCI) has also scheduled a four-day preparatory match for Ganguly and his boys from September 28 at Bangalore against India 'A' to give the team the much-needed practice in the longer version of the game ahead of the Test series.