India has good average annual precipitation, but its poor distribution in space and time has led to the scarcity of groundwater in many areas. Artificial recharge to groundwater requires a composite procedure along with detailed morphometric and hydrogeological studies of the area. In Maharashtra State, a programme was initiated to recharge the groundwater by making a cascade of earthen bunds, recharge ponds and using disused open wells. The effectiveness of artificial recharge programmes was evaluated by employing environmental isotopes (³H, ¹⁸O and D) in Ozar watershed whereas recharge zones and effectiveness of different recharge sources were evaluated in BM-60 and Bamnod watersheds. ¹⁸O and ³H isotopes revealed that the groundwater storage in Ozar watershed remains less and the contribution of canal water was found minimum during July and maximum during October (about 100%). Similarly, the isotopic signatures of groundwater in BM-60 indicate that the precipitation is the main source of recharge to groundwater in the BM-60 watershed and the contribution of other sources is minimal. The higher values of environmental tritium in Bamnod watershed revealed the contribution of artificial recharge that was carried out through Hatnur Canal on casual basis.