The opposition Move Forward Party won last year's election on a progressive platform that included a once unthinkable proposal to amend strict Thailand's lese majeste law, which carries penalties of up to 15 years in jail for each perceived insult of the powerful crown.

The court ordered the party to abandon those plans.

(Reporting by Chayut Setboonsarng, Panarat Thepgumpanat and Panu Wongcha-um; Editing by Martin Petty)