Please Download Government Rate of 2080/81 from this link.

Department of Land Management and Archive | Babarmahal,Kathmandu (dolma.gov.np)

if you want indvidual malpot office link then 

www.dolma.gov.np/office/"Malpot office name"

for example Chabhil malpot office 

www.dolma.gov.np/office/chabahil