BANGKOK           -          Several thousand people took part in Thailand’s biggest protest since a 2014 coup on Saturday after authorities moved to ban a party that has rallied opposition to the government of former military ruler Prayuth Chan-ocha. The demonstration in Bangkok, called just a day earlier by Future Forward party leader Thanathorn Juangroongruangkit, a 41-year-old billionaire, revived memories of the spasms of street protest that have roiled the Thai capital periodically during the past two decades of political turbulence. But there was no sign of any attempt to block the biggest demonstration since Prayuth seized power in 2014 on promises to end such unrest. “This is just the beginning,” Thanathorn told the cheering crowd that spilled across walkways and stairways close to the MBK Centre mall, in the heart of Bangkok’s shopping and business district. Thanathorn has emerged as the most outspoken opponent of the government headed by Prayuth, 65, since an election in March that the opposition said was manipulated to favour the army. Thailand’s election panel has asked the Constitutional Court to dissolve the Future Forward party, accusing it of infringing the laws governing political parties by accepting multi-million dollar loans from Thanathorn. Last month, the Constitutional Court disqualified Thanathorn as member of parliament for holding shares in a media company on the date his election candidacy was registered. Thanathorn disputed the ruling. Among Saturday’s crowd were some veteran “red shirt” protesters, supporters of ousted populist leader Thaksin Shinawatra, who had once clashed in Bangkok with the “yellow shirt” conservatives - hardline loyalists of the palace and army.