For the last 28 years I have been working on different aspects of Medieval Indian History. Medieval Archaeology which includes exploration, surveys of the sites and monuments. At the same time working on different aspects of Hydraulic technology which includes waterworks (Dams, Barrages, Wells, Step wells, Tanks etc..,). Also working on Indian Fort and Fortification.In this regard 53 research papers have been read and presented in different conferences/seminars such as World Archaeological Congress, Indian History Congress, U.P History Congress etc.. Also edited book entitled "Waterworks in India" as a special issue of Ateet: A journal pf History & Archaeology, Aligarh, Dec., 2011 with ISSN No. 2249-1252.