As you must know Rain Water Harvesting - is the activity of collection of water. It can be either store for direct use or can be recharged into the ground. As studied above, while dealing in second part of the definition that – “it can be recharged into the ground”. Resistivity test is the key factor. As we know the underground strata broadly it is - soil then Murom layer next is the Hard Murom & then the Basalt or in some cases it is marine clay & basalt.