Pakistan's ODI captain Misbah-ul-Haq along with six others had two hour training session at the Chepauk in the south Indian city.
Misbah and his mates, who have been picked only for the 50-over format, arrived in the morning and came for the training session at around 2 pm in the afternoon.
The players had a productive net session at the adjacent 'B' ground of the main stadium.
The ODI specialists are expected to practice on Friday also.
The other members of the ODI team who are currently busy for the second T20 International in Ahmedabad Friday will arrive a by a chartered flight on December 29, a day before the first ODI.
Pakistan lead the two match T20 International series 1-0.