let me make an introduction with "CHAKMA/CHANGMA" tribe.
they mainly live in Tripura,Mixoram,Arunachal pradesh,Chittagong Hill Tracts,Myanmar and also in Meghalaya,Assam,West Bengal,Delhi,Mumbai,Bangalore,Australia,USA,UK,Canada in small number.
The total number are assumed to be around
Now let me ventilate my words regarding the life standarity of so called Chakma people.
They're believed to be village dwellers who are chiefly dependant on jhum cultivation.