Agriculture is the backbone of Indian economy. It provides employment to more than 60 per cent of the population directly and indirectly and the area of cultivation occupied almost 43 per cent of India’s total geographical area. In the context of Indian agriculture, cotton occupies a place of prominence. Moreover, the contribution of Cotton to total agricultural income of the country is 30 per cent. With the increasing demand for cotton due to fast industrialization in India and abroad, there is a need for increasing the level of output and the productivity of cotton. This has resulted in the introduction of high yielding varieties and one such high yielding variety is the Bt cotton. It is established that when compared to other high yielding varieties, the Bt cotton has the advantage of higher productivity. The main objective of the is to understand the factors contribution to productivity of Bt cotton in Coimbatore district. The data were collected with the help of a pre tested questionnaire from 511 farmers who were selected by adopting the stratified random sampling technique.