Dr. M.L. Jat was born into an agriculture family on January 1st, 1958 in Bhilwara district of Rajasthan state, India. Graduating from CTAE, Sukhadia University, Udaipur, Rajasthan. He Obtained M.E. (Ag.) in Irrigation Water Management from RAU, Bikaner. Presently Dr. Jat is working as Associate Professor (SWE) in AICRP on Dryland Agriculture at DFRS, Arjia, Bhilwara, MPUAT, Udaipur (Rajasthan). The author has vast experience in the field of prediction of drought and its management, ground water also in rainwater management while working in AICRP on dryland agriculture and agrometeorology. He has received Outstanding Book Awards in 2008 from Indian Society of Agricultural Engineers for his book on “Groundwater Hydrology”.