The petition, filed by Pheu Thai spokesman Prompong Nopparit, was accepted by Amnuay Noysopha, deputy chief of the EC secretariat.
Mr Prompong said People's Democratic Reform Committee (PDRC) rallies led by Suthep Thaugsuban and eight other leaders with links to the Democrat Party had violated Section 68 of the constitution. This was affirmed by the Criminal Court's approval of a warrant for the arrest of Mr Suthep for inciting insurrection, he said.
He said PDRC core members had coordinated their activities with 25 leading members of the Democrat Party.
On Dec 8 last year, party leader Abhisit Vejjajiva led Democrat MPs to resign en masse to pressure Prime Minister Yingluck Shinawatra to dissolve the House of Representatives and call a general election, which was subsequently boycotted by the Democrat Party.
The Democrat Party had failed to fulfill the duties of a political party as stated in Section 94 of the Political Party Act, he said.
Mr Prompong added that a petition filed by the Democrat Party asking the Office of the Ombudsman to ask the Constitution Court to nullify the Feb 2 election was further proof of its intention to topple the government outside of democratic rules.