The correct answer is State Goods and Services Tax (SGST).
State Goods and Services Tax (SGST) is a tax levied on the supply of goods and services within a state. It is levied by the state government and collected by the state government. The proceeds of SGST are shared between the state government and the central government in the ratio of 50:50.
Sales tax is a tax levied on the sale of goods. It is levied by the state government and collected by the state government. The proceeds of sales tax are retained by the state government.
Income tax is a tax levied on the income of individuals and businesses. It is levied by the central government and collected by the central government. The proceeds of income tax are shared between the central government and the state governments in the ratio of 42:42:16.
Property tax is a tax levied on the value of property. It is levied by the local government and collected by the local government. The proceeds of property tax are retained by the local government.
SGST is the largest source of revenue for the Tamil Nadu government because it is a tax that is levied on a wide range of goods and services. It is also a tax that is relatively easy to collect.