Which medical herb to cultivate in Nepal?

Which medicinal herb can be grown commercially in Nepal.
We have acres of land in hilly region here.We have a manpower already working in growing commercial vegetable farming.
We are looking for information on which herb to cultivate here now,for:
Medical usage or Essential oil production.
We are seeking advice and help from expert.
Please provide your valuable suggestion on which crop to choose,its Nursery guidance,suitable climatic and growth conditions & all in all the Market

ArambhaAgro,
you can go for Nepali satavari or Jatropha tree for oil seeds. But check the market for Jatropha oil seed market first.

Best Regards,

Azhar2345