"It is a violation of the 10th Schedule of the Constitution and is undemocratic and illegal. We will not accept the disqualification. We are in the process of moving the Supreme Court," Congress leader D D Lapang said.
Lapang said," With 27 members behind us, we are in the majority (in the 60-member house)."
Stating that Congress would not allow dissolution of the house, which is in suspended animation after imposition of President Rule, Lapang, a former chief minister said,"It is imperative on the part of Governor R S Mooshahary to call Congress to form the government."
The Speaker disqualified the four MLAs, who had deserted the ruling Meghalaya Progressive Alliance and sided with the Congress, late last night.
The four were -- Deputy Speaker and NCP MLA Sanbor Shullai, the lone legislator of Khun Hynniewtrep National Awakening Movement (KHNAM), Paul Lyngdoh and independents Limison Sangma and Ismail Marak.
The four were among the five MLAs who had deserted the MPA, reducing it to a minority from 32 to 27 members in the 60-member assembly. The MPA, however, survived the trust vote on March 17 with the casting vote of the Speaker, who had invalidated the votes of the four rebel MLAs.
Presidents Rule was imposed in the state on March 19 after the Governor cited a"constitutional breakdown".
Lapang had paraded 31 MLAs, including the four rebels, before governor last week, staking claim to form the government.