Dhaka, Sept. 22 -- Openly challenging the monarchy of Thai King Maha Vajiralongkorn, thousands of anti-government protesters marched in Bangkok on Sunday demanding reforms to curb his powers, among the other demands. At the biggest demonstration since the 2014 coup, they declared that the country "belongs to the people" -- the boldest show of defiance in the youth-led movement which is questioning the unassailable monarchy's role in the country.

Moreover, the demonstrators called for the royal family to stay out of the country's politics, saying that the king is above politics. However, the king, who spends much of his time in Europe, is not in the country at this moment.

Media reports in the national newspapers said that Thailand has see...