BCCI has already named a group of 16 pacers for the physical fitness conclave, that runs up to July four, to be conducted by trainer Gregory King under the watchful eyes of Chappell.
"To play international cricket, you have to be physically fit," said 56-year-old Chappell, who assumed charge as the team coach last week.
"To play the sort of schedule that the players are confronted with in this day and age, it takes fitness".
The 16 bowlers in the list are: Zaheer Khan, L Balaji, A Nehra, Irfan Pathan, A Agarkar, Gagandeep Singh, S S Paul, Ranadeb Bose, Harvinder Singh, Amit Bhandari, S Trivedi, Sreesanth, Joginder Sharma, Munaf Patel, J P Yadav and Jesuraj.
Pathan, who is busy playing in the country circuit in England, would not attend the camp.
The 16 will be joined by 20 other probables and the combined 36 players will attend a conditioning camp from July five to 12, which will be followed by the final camp focusing on cricket skills from July 13 to 22.
"It's a matter of getting our players as fit as possible to be able to play cricket consistently at this (international) level," Chappell said.
Indian team's first assignment of the season is a triangular one-day series in Sri Lanka, also involving the West Indies.