1. Assoc. Prof., Ctr. of Excellence in Water Resour. Engrg., Univ. of Engrg. and Technol., Lahore, Pakistan. E-mail: dratatariq@yahoo.com
2. Water Mgmt. Ofcr., On Farm Water Mgmt. Directorate, Dept. of Agriculture, Govt. of the Punjab, Lahore, Pakistan.