Defence Minister Rajnath Singh, the military commanders, and a team of secretary-level officers from the Ministry of Defence have joined the deliberations from Friday.
The valedictory session on the third and final day today will be chaired by PM Modi. National Security Advisor Ajit Doval will also attend the valedictory session.
Chief of Defence Staff General Bipin Rawat, Army Chief General M M Naravane, Air Chief Marshal R K S Bhadauria, and Navy Chief Admiral Karambir Singh are among the attendees of the conference.
Jawans and junior commissioned officers have also participated in the conference for the first time.
According to the sources, the three day Combined Commanders' Conference, a premier brainstorming event of the military officials is taking place after three years.
The last edition of the conference was held in 2018 at the Air Force Station in Jodhpur.