Electrical conductivity (EC)
The EC is the most important parameter to estimate the total ionic concentration of groundwater and an elevated concentration of EC value reflects in total dissolved solids present in the groundwater (Azhdarpoor et al., 2019). It gives a proportion of water acceptability to transmit the electrons. In a study area, EC range from 650 to 6330 µS/cm with a mean of 2236.5 µS/cm. Handa (1969) proposed a classification of EC value is given in table.3. About 1.06 Sq. Km area falls under medium, 362.48 Sq.km area falls under high, 302.51 Sq.km area falls under very high, and 0.89 Sq.km area falls in extensively high (Fig.3b) for drinking purpose.Elevated concentration of EC reveals that nature of aquifer, rock water interaction and anthropogenic activities are highly influenced the nature of groundwater