Some of those being considered to lead the party are general secretaries JP Nadda, Amit Shah and P Muralidhar Rao. Om Mathur, a close Modi aide and in-charge of the last Gujarat assembly elections, is also a frontrunner.
The BJP is likely to carry out a host of organisational changes as most of its leaders have joined the new government.
General secretaries of the BJP, Ananth Kumar, Dharmendra Pradhan and Thawar Chand Gehlot, have become Union ministers. Smriti Irani and Jual Oram, who are vice-presidents and Piyush Goyal, who is the treasurer, have also been inducted into the council of ministers.
Modi was sworn in as the new Prime Minister on May 26. Besides him, 45 other members were inducted into the new council of ministers. A cabinet expansion is likely to take place in mid-June.
RSS pointsman for the BJP, Suresh Soni, was also present at the meeting held at the RSS office in New Delhi on Wednesday.
(With inputs from Agencies)