ZAHID, Anwar, Bangladesh Water Development Board, Directorate of Ground Water Hydrology, 72, Green Road, Dhaka, 1205, Bangladesh, JAHAN, Khurshid, Bangladesh University of Engineering and Technology, Institute of Water and Flood Management, Lalbagh, Dhaka, 1000, Bangladesh, HASSAN, Qumrul, University of Dhaka, Department of Geology, Ramna, Dhaka, 1000, Bangladesh and HASSAN, Mohammad Rashidul, Institute of Water Modeling, Irrigation Management Division, House# 496, Road# 32, New DOHS, Mohakhali, Dhaka, Bangladesh, anwarzahid_b@yahoo.com