id	keyword
ca-5295	rivers
ca-5295	sand
ca-5295	engineers
ca-5295	sediments
ca-5295	india
ca-5295	nepal
ca-5295	himalayas
ca-5295	extraction
ca-5295	engineering
ca-5295	science
ca-5295	press
ca-5295	history
ca-5295	water
ca-5295	mining
ca-5295	floodplains
ca-5295	mountains
ca-5295	colonial
ca-5295	bengal
ca-5295	university
ca-5295	knowledge
ca-5295	dredging
ca-5295	2022
ca-5295	problem
ca-5295	kosi
ca-5295	geology
ca-5295	2020