AN OVERVIEW :In Tamil Nadu, the Co-operative movement has spread its wing in almost all the walks of life. The word "Co-operation" is derived from the Latin word 'Co-operale', which means 'work together', In the ordinary sense, Co-operation means 'working together jointly'. The term co-operative implies a comman endeavor with a common end. Those who join togather should have some economic aim. which they cannot normally achive by individual isolated action. Union is 'strenght' and achive the common end through self-help and mutaul help. They are guided by the principle "each for all and all for each"