Conversion of potato from conventional sowing methods to bed planting systems may increase water use efficiency in commercial potato production system by reducing the amount of irrigation water. Potato is sensitive to water stress therefore, it reveals harsh effect on physical and chemical properties of potato. To investigate this issue a field experiment on autumn potato was conducted at Water Management Research Centre (WMRC), University of Agriculture Faisalabad (UAF) during 2014-2015. This study aims to investigate the effects of different irrigation methods and irrigation regimens on potato physical and chemical characteristics under altered planting configurations. Two planting patterns with irrigation treatments were ridge-furrow planting system with furrow irrigation (F) and bed-furrow planting system under drip irrigation (D) with three irrigation regimens included D1= Full irrigation, D2= 90% of full irrigation and D3= 85% of full irrigation and was replicated thrice. Results showed that deficit irrigation poses severe effects on physical properties while didn’t have any significant effect on chemical properties of potato. Physical characteristics included physical dimensions (tuber length, thickness and diameter), shape index, weight analysis, actual and calculated volume, particle and bulk densities and repose angle. It was noted that treatment F showed higher average tuber length, thickness, weight, actual and calculated volume, particle density, bulk density and repose angle that were registered as 7.65 cm, 4.31 cm, 97.34 g, 86.25 cm3, 80.44 cm3, 1.13 g/cm3, 563.36 kg/m3 and 33o50’respectively while D1 showed 1.75 shape index and D3 showed higher tuber diameter 6.37 cm. While chemical properties included tuber moisture (%), TSS and starch content (%) that were registered as 79.3, 5.37 and 18.6 respectively in F. It was concluded that deficit irrigation severely affect the physical properties of potato therefore stress exercise isn’t recommended on potato at all.