Former chief minister Pawan Kumar Chamling and senior Sikkim Democratic Front leaders were conspicuous by their absence at the swearing-in.
Some ministers are likely to be sworn in along with Golay, who was elected as the leader of the SKM legislature party on Saturday night.
Pawan Chamling is all set to become CM for the fifth time in a row; SDF party led by him sweeps the assembly polls, winning 22 of the 32 seats. Anurag Kashyap reports.