Senior Congress MLA Aleixo Reginaldo Lourenco on Friday called the switch over of his party MLAs to the ruling BJP as "political prostitution".
Led by Leader of Opposition Chandrakant Kavlekar, 10 of the 15 Congress MLAs in Goa joined the Bharatiya Janata Party (BJP) on Wednesday.
"What has happened this time is political prostitution. We cannot talk about it," he told reporters in Margao after meeting Goa Forward Party (GFP) president and Deputy Chief Minister Vijai Sardesai.
Lourenco is among the five MLAs left in the Congress, which had emerged as the single largest party after the 2017 assembly polls.
He said his meeting with Sardesai was "casual".
Sardesai and two other ministers from his party may be dropped from the state cabinet to accommodate rebel Congress MLAs who have joined the BJP, sources said.
"Everyone meets a person when he is in power. I am meeting him when he is not," Lourenco said, referring to speculation about the fate of Sardesai and the two other GFP legislators who are presently members of the cabinet.
After the merger of the breakaway Congress MLAs, the BJP's strength in the 40-member assembly has gone up to 27.
Sources said four new ministers would be sworn-in on Saturday.