Kalanamak rice has been cultivated since the Buddhist period (600 BC). Kalanamak grains were found from the excavation of Kapilvastu. Kapilvastu, part of the Kingdom of King Śuddhodana, father of
Gautama Buddha is located in Terai, Nepal. During the excavation of Aligarhwa carbonized rice grains resembling Kalanamak were recovered. Chinese monk
Fa-hien wrote that when
Buddha visited
Kapilvastu for the first time after attaining 'enlightenment', he was stopped at Mathla village by the people. The villagers asked Siddhartha to give them
prasad. Siddhartha took the rice he had taken in alms and gave it to the people, asking them to sow it in a marshy place. The rice thus produced "will have a typical aroma which will always remind people of me," he said. Bajha jungle later vanished replaced by Bajha village near
Kapilvastu. Mudila village replaced Mathla. The belt is still believed to run between
Bajha and
Aligarhwa. This variety, if sown elsewhere, loses its aroma and quality. The first effort to conserve Kalanamak rice was made by Englishmen William Pepe, J H Hemprey, and Edcan Walker (Jamindars of Alidapur,
Birdpur, and Mohana) during the
British Raj. They built reservoirs at Bajha, Marthi, Moti, and Majhauli to produce Kalanamak. They produced this variety for their consumption and transported it to England from Uska-bazar mandi, passing through
Dhaka (now in
Bangladesh). Due to increasing demand, the British captured the land around Kapilvastu and established Birdpur and Alidapur estates. They produced Kalanamak through bonded labor and exported it to Britain. When
Gujarati businessmen came to know about this business potential, they formed a
mandi at Uska-bazar to export Kalanamak. British "shopkeepers" built a rail route to carry rice via rail to counter them. After independence, Uska-bazar mandi became nonfunctional due to negligence, and reservoirs gathered silt. This led to a fall in production of Kalanamak. ==GI Tag==