Answer:
For administrative and economic reasons, theBritish government tried settling the jhum or shifting cultivators. However, settled plough cultivation did not prove to be helpful to these jhum cultivators. They often suffered because their fields did not produce good yields.
Well people and our thoughts if you really think about it
The occupation that it referring to is : skilled and unskilled miners
This treaty was enacted in 1880 , back then the job as a miners is pretty much the equivalent of today's engineer in the term of hotness and availability.
Hope this helps