The correct answer is: a) State GST (Goods and Services Tax).
State GST is a major source of revenue for the Tamil Nadu government because it is a tax that is levied on the sale of goods and services within the state. The revenue from State GST is used to fund a variety of government programs and services, such as education, healthcare, and infrastructure.
Central grants are also a source of revenue for the Tamil Nadu government, but they are not as significant as State GST. Central grants are funds that are provided by the central government to the state governments. The central government provides these funds to help the state governments meet their financial obligations.
Income tax is a tax that is levied on the income of individuals and businesses. The revenue from income tax is collected by the central government and then distributed to the state governments. However, the Tamil Nadu government does not have the authority to levy income tax.
Property tax is a tax that is levied on the value of real property. The revenue from property tax is collected by the local governments and then distributed to the state governments. However, the Tamil Nadu government does not have the authority to levy property tax.
In conclusion, State GST is a major source of revenue for the Tamil Nadu government because it is a tax that is levied on the sale of goods and services within the state. The revenue from State GST is used to fund a variety of government programs and services, such as education, healthcare, and infrastructure.