The sacked ministers are Anjali Behera and Sanjeev Sahoo.
Reports reveal that more than 25 BJD MLAs met Mohapatra at his residence, while the Chief Minister was in London.
"Some MLAs have met Pyari Mohan Mohapatra and they told media that they had discussed development issues with him and claim that they have 25 to 28 MLAs with them," said BJD Vice President Damodar Rout.
"They are planning to form a breakaway government with the help of some Congress MLAs and are meeting the Governor on Wednesday," said Rout.
"There is no threat to our government as there is no alternative," he said.