id	keyword
bibechana-74121	water
bibechana-74121	river
bibechana-74121	quality
bibechana-74121	dhobikhola
bibechana-74121	orp
bibechana-74121	fig
bibechana-74121	parameters
bibechana-74121	conductivity
bibechana-74121	variation
bibechana-74121	monsoon
bibechana-74121	pollutants