Groundwater, irrespective of its occurrence is an integral part of hydrologic cycle. For the origin of groundwater there are two theories. Condensation theory - support the origin of groundwater resulting from condensation of water vapor present in the host rock at the time of their formation. According to Infiltration theory- Groundwater results from infiltration of atmospheric water into the ground.

Depending upon the source and mechanism of its genesis groundwater can be 'connate water'- filled in interstices of sedimentary rock,' juvenile groundwater'- which is of cosmic origin resulting from volcanic / magmatic eruption, 'meteoric water'- - which is contributed by rainfall and ' rejuvenated water'- which results from compaction of loosely packed sediments