The study Capital Expenditures in Tamil Nadu analyses the growth trend of Capital expenditure in Tamil Nadu. This study is a time series and positive study, and it is based on secondary data. The main objective of this study is to find out the growth trend of Capital and revenue expenditure in Tamil Nadu and to know about the share of Capital expenditure in Net states domestic product and also this study is based on the hypothesis ‘The elasticity of capital expenditure is greater than unity’. This study concluded that the capital expenditure in net state domestic product has increased in Tamil Nadu during the post-reform period