Opposition parties and the Democrat Party, a key coalition partner of the government, on Constitution Day on Saturday renewed their calls for a rewrite of the charter to ensure "full restoration" of democracy.
Pheu Thai Party said the constitution was a biased product of the May 22, 2014 military coup, engineered mainly to serve the now-defunct National Council for Peace and Order (NCPO).
Despite past efforts to amend the charter, only one section regarding the election system has been amended, Pheu Thai said.
