The Tamil Nadu Small Industries Development Corporation Limited (TANSIDCO) is a state-agency of the state of Tamil Nadu, India established in 1970 to promote small-scale industries in the state.

[2] Industries refer to the secondary type of occupation.

Tamil Nadu is ranked as second largest industrialized state after Maharashtra.

It was the first Established Industrial Estate in the Independent India.

Later in 1963, Another Industrial Estate was established in Ambattur, near Chennai at a total spawn of 1167 acres and it is one among the largest MSME Industrial Estates in Asia.