The upper Kharun sub basin covering an area of 2200 km was taken up during the 4 weeks Tailormade Training Program from 14th March 2018 to 6th April 2018 held at UNESCO, IHE, Delft, Netherlands under National Hydrology Project. The Aim of the training was to know principles and procedures of groundwater flow modelling and the use of computer models for groundwater resources management. The experiences of modelling will be obtained through a series of handson exercises in computer workshops and a real case study from India. The objective was to know how to create a groundwater model following the procedures of building a groundwater model: definition of model objectives, construction of hydrogeological conceptual models, design of numerical models, preparation of model inputs, model calibration and model application. During the training, the most popular groundwater model codes: MODFLOW, PMPATH, and a graphical user interface PM8 was used for hands on exercise. PM8 interface was used to apply groundwater models for analysis of groundwater flow systems and water budget; delineation of capture zone of well fields, and evaluation of groundwater development scenarios. The upper Kharun area was taken up as case study during the training course. On the completion of the course, the area 10000 sq km area was taken up during the AAP 2018-19 and 2019-20 including 2200 sq km area of upper Kharun sub basin as a part of AAP 2018-19 for groundwater modelling to simulate groundwater flow and formulate development scenarios