I think Govinda R. Joshi and Khum B Khadka are some of the worst and most corrupted politicians. I don't know about the latter, but I know about GRJ; he started as a school teacher in Manechauka and eventually became the minister of education...and then "rataa raat karodpati!" I thought it was only in America, but you can drive a car to the third floor in his bunglaw in Baneshwor!