यह मनथन के साथ स्थापित हुआ था, पुरानी संचालन इकाई, जिसमें छैया नाम के तीनों शहर एक ही में जुड़ गये।
It was with the establishment of the Monthon, a former administrative unit, that all three cities were merged into one under the name Chaiya.