Chief of Capo and Deputy Prime Minister Surapong Tovichakchaikul said on Monday evening that the constitution allows the Pheu Thai-led government to continue to administer the country as caretakers until a general election is held, after the dissolution of the House this morning.
His Majesty the King's endorsement has also been published in the Royal Gazette.
However, Mr Suthep is still rejecting the caretaker government, citing Section 3 of the charter.
Section 3 says sovereign power belongs to the Thai people and the King as Head of State shall exercise such power through parliament, cabinet ministers and the courts in accordance with the provisions of the constitution.
Mr Surapong said Mr Suthep's demands are illegal. He added that sovereign power belongs to all Thais, not only Mr Suthep's supporters.
Mr Suthep is wanted on charges of insurrection in violation of Section 113 of the Criminal Code relating to his supporters' invasion of state offices.
Mr Surapong said Mr Suthep repeated the same offence under Section 113 when he told public servants to report to the People's Democratic Reform Committee to make clear whether they support government or his protest movement.