Agriculture still forms the life line of our Indian economy and vital activity of a human being. Agriculture sector in India contributes nearly half of the national income, providing jobs to three fourth of the total population. In short agriculture plays a significant role in the economic development process of a country and agriculture continues to be the most predominant sector of the Tamilnadu economy. Agriculture productivity has been an important issue as the population continues to grow.

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... But in the recent year's agriculture lands are converted to real estate business in major Indian cities, particularly Tamilnadu real estate business attained a boom to the core extent. In this context, the researcher has a keen interest to indentify the spatial pattern of agriculture productivity. The concept of agricultural productivity has been extensively used to explain the spatial organization and patterns of agriculture. Agriculture productivity has been measured by several scholars using different methods. This research paper attempts to identify spatial pattern of Cauvery Delta zone based on agriculture productivity index, the study area includes the districts of Thiruchirappalli, Ariyalur, Thanjavur, Nagapattinam, Thiruvarur and a part of Pudukkottai. The data was collected from secondary source of Department of Economics and Statistics, Tamilnadu during the year 2011-2012. Among various productivity index methods, the researcher chosen Enyedi's Method and this method applied to compute crop productivity index because of its accuracy. The productivity index values were calculated and differentiated the productivity regions as High Productivity Region (HPR), Moderate Productivity Region (MPR) and Low Productivity Region (LPR).