From the records available in the Basel Mission at Balmatta, Mangalore, it can be ascertained that in 1851, a weaver, John Haller was sent out to exploit the opportunities that beckoned. After 19 months, he already had 20 looms where 27 workers were employed. By 1856, their skills had progressed and they won the second prize at an industrial fair in Madras. Haller experimented with the sap of a bark of a semecarpus tree and invented a colour. He named this invention a Kannada word.
The invention please?

Answer(Highlight):
Khakhi