id	keyword
esrj-54555	groundwater
esrj-54555	analysis
esrj-54555	samples
esrj-54555	area
esrj-54555	study
esrj-54555	india
esrj-54555	quality
esrj-54555	nagaraju
esrj-54555	correlation
esrj-54555	pradesh
esrj-54555	chemistry
esrj-54555	multivariate