The goods produced 'c'-form on Non GST goods are:
(i) Petroleum Crude
(ii) High Speed Diesel
(iii) Natural Gas
(iv) Aviation turbine fuel
(v) Alcoholic liquor for human consumption

The list of indirect taxes before GST regions are:
(i) Central Excise duty
(ii) Additional Duties of Excise
(iii) Purchase Tax
(iv) Central Sales Tax
(v) Entry Tax
(vi) Entertainment Tax
(vii) Taxes on Advertisement

The three demerits of UGST are:
(i) It is confusing term where double tax is charged in the name of a single taxation system.
(ii) Tax evasion is possible. Number two sales are doing.
(iii) Most of the dealers don't pay (or) Sales accounted are showing less quantity.
(iv) The introduction of tax system in the country would impact real estate market.

GST Act has proposed four tax rates, i.e. 5%, 12%, 18% and 28%

Union Territory Goods and Services Tax which is formed to impose and collect tax from the five union territory administrations in India under UGST Act 2017.

CGST-Central Goods and Services Tax-imposed and collected by the Central Government on all supply of goods within a state (intra-state) under CGST Act 2017.

State Goods and Services Tax (SGST ) - imposed and collected by the State Governments under State GST Act. (Tamil Nadu GST Act 2017 passed by Tamil Nadu Govt.)

(i) Goods and Services Tax (GST) is the tax imposed on the supply (consumption) of goods and services.
(ii) It is a destination based consumption tax and collected on those value-added at each stage of the supply chain.

GST, Excise Duty, CGST, SGST, VAT

Indirect Tax is levied on the goods and services. It is collected from the buyers by the sellers and paid by the sellers to the Government. Since, it is indirectly imposed on the buyers, it is called indirect tax.
E.g. GST -Goods and Services Tax, Excise Duty, etc.