The mission grew to include many Christian organisations from 18 countries in four continents, which say that they seek to "serve the people of Nepal, particularly those who live in poverty ..inspired by the love and teachings of Jesus Christ."
(Pritchard 1973:91) These discussions dovetailed with a separate approach by the authorities in Tansen, a large hill-town halfway between Nautanwa and Pokhara, to American missionaries Bob and Bethel Fleming and Carl and Betty Friedericks (representing Methodist and Presbyterian missions).
Contact had been made as a result of ornithological trips into Nepal in October 1949 and the winter of 1951–52 during which medical assistance had been given to the people of Tansen.
Pickett circulated an invitation letter from Home Minister of the Nepalese government to other missions associated with the NBF[clarification needed] in conjunction with the National Christian Council of India with a view to "establishing a Christian mission in Nepal on the widest possible cooperative basis, a combined interdenominational and international approach."
"The Mission takes the terms seriously… and has learned that its stay in Nepal rests on a mixture of invitation, permission and mutual agreement; that it is temporary ...that it is in partnership with Nepali society."