There is a view within the BJP that Amit Shah may join the govt after playing a crucial role in the party's return to power. The meeting lasted about five hours and while there was no official word on what transpired in the meeting but the PM and Shah are believed to have discussed the formation of the second Modi government, including choices for ministerial berths.

from Times of India https://timesofindia.indiatimes.com/india/pm-modi-amit-shah-hold-marathon-meeting-ahead-of-swearing-in-ceremony-on-may-30/articleshow/69551865.cms