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Goods and Service Tax is all-inclusive tax levy on visible and invisible items.GST is one indirect tax for the whole Indian economy except all those goods and services are out of GST. There are three taxes applicable under GST: CGST, SGST & IGST.GST law has replaced many indirect tax laws that previously existed in India. GST is called as biggest tax reform In Indian Tax System. GST included indirect taxes such as excise duty, central sales tax (CST)and value- added tax (VAT) etc. had been subsumed under a single regime. GST has mainly removed the Cascading effect on the sale of goods and services. Tax administration has progressed and a lot of to be coated in reforming the legal system. it's a continual exercise for up revenue productivity and minimizing distortions. Coordinated reforms ought to be undertaken at the central, state, and native levels. a serious objective ought to be reduction of distortions and compliance prices. These new changes to make a replacement tax code had been planned to expect that lower taxes and easier rules can guarantee compliance and a lot of revenue. It may be over from the higher than discussion that merchandise and Services tax (GST) can offer an excellent support to shopper and producers through an in depth and complete coverage of products and services tax. GST promotes the economic unification of the country or state uniform mechanism of operations and implementations. However, its impact on prices might vary sector wise within the same economy in addition. Removal of cascading effect is directly impacting the cost of goods. GST is a single national uniform tax levied across India on all goods and services.

The Proposed study is designed to explore in depth on evolution and growth of GST in special reference to Indian Economy also focus on how GST works and how different individuals are affected by GST.The journal is analytic in nature and data has been collected from secondary source for the study. The data has been used from related studies, magazines. Newspapers and Internets. GST referred to as the goods and Services Tax is defined because the big indirect tax structure designed to support and enhance the economic process of a rustic, over 150 countries have enforced GST so far.

This phase of Indian Experience can be studied with the experience other economies and studies of different scholars as well. Then only a definite idea about the present scenario and possible outcome can be discussed. Ultimately, this may provide some glimpse of the possible solutions also.

(1)   Kumar (2014) discussed that the GST will help in removing the economic deformation by indirect tax system in India and encourage the unbiased tax structure in different part of India.

(2)   Garg, G (2014) depicted that the GST implementation has been an important and exhaustive step after independence for the economic transformation. It will be most significant task for the indirect tax collection in India.

(3)   Palil (2011) explained that the GST will increase at least 4% of products price but due to lack of awareness and knowledge about the GST the price of the products may increase because of a hoarding among mentality among the public.

(4)   Vasanthagopal, V. (2009) depicted that the switching from current complicated indirect tax system to GST will be the positive steps for economic development of the Indian economy.

Goods and Services Tax (GST), India's biggest tax reform in 70 years of independence, was finally launched at midnight on 30 June 2017 and was introduced as the Constitution (One Hundred and First Amendment) Act 2017, following the passage of Constitution 122nd Amendment Bill, governed by a GST Council and its Chairman, the Finance Minister of India.

2000: In India the idea of new tax reform as uniform tax system was first suggested by Atal Bihari Vajpayee Govt. After that A committee was set up, headed by Asim Dasgupta (chaired the committee until 2011), the minister of west Bengal then to design a Goods and Services Tax Model for the country. 

2004: Vijay L. Kelkar Committee pointed out some problems with present indirect tax system and gave recommendation for Goods and Services tax.

February 2005: In the budget session 2005 – 06 present Finance Minister P. Chidambaram discussed about Goods and Services tax structure across the country, covering the whole production-distribution chain.

February 2006: The Minister of Finance has set April 1, 2010 as the date by which the GST will be introduced.

July 2009: The new finance minister of India, Pranab Mukherjee, announced the basic structure of the GST system in India. The 1 April 2010 deadline was followed then as well.

November 2009: The EC headed by Asim Dasgupta presented the FED (First Discussion Paper) with outlined the proposed GST regime.

February 2010: With the objective of “computerised commercial taxes” in state, Government allocated Rs. 1,133 for a project that laid the foundation for GST. And implementation of GST in India postponed by one year.

March 2011: The present government present the 115^th amendment bill for the introduction of GST. The opposition party protest against 279B clause of that bill which gives additional power to Centre over the states.

February 2013: During the budget session finance minister announces that central government will provide Rs. 9,000 crores to states as compensation and appeals to the sate finance ministers to work together for the implementation of the new indirect tax reform.

October 2013: The Gujarat state opposes the bill because after adopting destination – based taxation rule state would have to bear a loss of Rs. 14,000 crores.

May 2014: 115^th Amendment bill lapses. And same year the ruling party (Congress) in the centre has changed and new government (BJP) came into the power under leadership of PM Narendra Modi.

December 2014: New finance minister Mr. Arun Jaitley, submits the 122^nd Constitution Amendment Bill, 2014in the front of parliament. And opposition parties demanded that the Amendment Bill be sent for discussion to the standing committee.

May 2015: On 6^th May 2015 the Lok Sabha (House of the People) or the lower house passes the 122^nd Constitution Amendment bill. Mr. Jaitley also announced that alcohol for human consumption and petroleum would be exempted from the purview of GST.   GST will apply to five petroleum products later.

August 2015: The Amendment Bill was not passed in the Rajya Sabha.

March 2016: Jaitley says he agrees with the congress request that the GST rate not be set at more than 18%. But he is not inclined to correct it. Because in the future, if the government is required to raise the tax rate in an unforeseen emergency, it must obtain the permission of Parliament. As a result, a flat tax rate is excluded.

June 2016: The Department of Finance publishes the GST Model Legislation and expects to receive suggestions and opinions.

August 2016: In order to implement the GST, the draft Constitutional (122nd Amendment) (CAB for short) was introduced in Parliament and passed by Rajya Sabha on 03^rd August and on 08^th August from Lok Sabha.

September 2016: On 08^th September 2016 the Honourable President of India gives consent for the Bill to amend the Constitution to become law.

July 2017: The Government proposes to introduce GST with effect from 01^st July 2017.

Four GST-related bills become law, after approval by Parliament and Speaker's assent.

· Central GST Bill

· Integrated GST Bill

· Union Territory GST Bill

· GST (Compensation to States) Bill

The GST Board also finalized the GST rates and regulations. The government states that the GST bill will apply on July 1, 2017.

3. Constitution (One Hundred and First) Amendment Act, 2016

On December 19, 2014, the 16th Lok Sabha passed the Constitution 122nd Change Bill, the fourth amendment, to address ongoing taxation issues.

1. The Bill proposes the imposition of GST on all products and services, excluding alcoholic beverages consumed by people.

2. States and union territories as well as the Centre impose the tax as a dual GST. State Tax (SGST) is the portion levied by the state, whereas Central Tax (CGST) is the portion levied by the government. Union Territory Tax, also known as UTGST, is the tax imposed by union territory. On interstate commerce and the importation of goods and services, the Centre levies the GST.

3. The term "Integrated Tax" (IGST) is used to refer to this tax. In addition to GST, the Central Government also levies an excise duty on tobacco products.

4. After the GST Council makes a decision, the tax rates for five petroleum products—high-speed diesel, crude oil, gasoline, natural gas, and aviation turbine fuel (ATF)—are made public.

3.1. September 2016:

To decide on GST rates, thresholds, levies to be consolidated, exemptions, and other options of the taxation system, the union minister of finance, revenue minister, and ministers of state established the goods and Services Tax Council (GSTC). The state finance ministers stated that the EC would provide a forum for states where talks of their regional issues would take place. A separate organisation that might supervise the GST system's operation is the GST Council.

3.2. Decisions taken by GST Council:

several the key decisions taken by the GSTC thus far are:

1. There are four tax rates under the GST: 5%, 12%, 18%, and 28%.

2. A cess greater than the height rate of the 28 would be taken from the sure sin and the luxury goods.

3. The administrative management more than 90th of the taxpayers with the turnover but Rs.1.5 crore would be to the tax administration of the State. The whole administration would be the responsibility of the central tax authority.

4. Administrative management over taxpayers having turnover above Rs.1.5 crore would be equally divided between the State and Centre tax administration.

5. Goods and Services Tax Network (GSTN) was discovered as a personal company in 2013 by the govt underneath Section 25 of the companies Act, 1956. GSTN is anticipated to supply the front-end services of registration, payment, and returns to taxpayers. it'd additionally develop back-end technical modules that may be used by 25 states that have opted in.

6. GSTN has additionally known 34 IT and money technology companies and labelled them as GST Suvidha suppliers (GSPs). These organisations can develop applications which will be utilized by taxpayers after they move with GSTN.

3.3. Dual System 

GST intends to follow a dual model, that will be obligatory at the same time by the States and central yet. The dual model was propounded within the initial Discussion that was released by the empowered Committee with an objective to go away from the matter of tax on tax.That is referred to as double taxation.And to move to a standard asset and additionally to have numerous Central and State levies on goods and services into Central goods and Services Tax (CGST) and State goods and Services Tax (SGST) ^{[8] [11]}.
 
Figure 1. Framework of Dual system of GST in India 2017.
1. Central GST, collected by the Central Govt – CGST
2. State GST, collected by the State Govt- SGST.
3. Integrated GST, collected by the Central Govt - IGST
3.3.1. Intra State Tax [CGST & SGST]:
GST may be a destination-based tax applicable on all the transactions that involves provide of goods and services for a thought. GST have a dual rate structure of comprising CGST, which has been levied also as collected by Central Government, and SGST, which is levied and picked up by State Governments ^{[4] [6]}. All native and everybody intra-State supplies of taxable goods and services are liable to each CGST & SGST except once identical get excluded on account of turnover threshold limits or different exemptions.
3.3.2. Inter State Tax [IGST]:

Figure 2. Framework of Integrated GST
An integrated Goods and Services Tax (GST) model was used for the taxation of the provision of goods and services between States. IGST would be a sum of CGST and SGST. Under this model, IGST is levied by the Centre on all interstate providers of paid goods and services.
4.1. Indirect Taxation Structure Which subsumed under Goods Services Tax
4.1.1. Central Taxes Which Subsumed in GST The following taxes Ruined with introduction of GST, those are
1)  Service Tax and Central Excise Duty
2)  Excise Tax additional duties
3)  Excise Duty levied under the Medicinal and Toiletries Preparation Act
4)  Countervailing Duty (CVD), i.e., Additional customs Duty
5)   Central sales tax
6)   Additional duties of customs.
 4.2.1. State Taxes Which Subsumed Under GST
1)  Luxury Tax
2)  Entertainment Tax (unless it is levied by the Local bodies)
3)  State VAT/Sales Tax
4)  Taxes on lottery, betting and gambling
5)  State Cess and Surcharges in so far as they relate to supply of goods and services
6)  Entry Tax
7)  Central state tax
8)  Octroi
9)  Purchase tax
4.3. Benefits of goods and Services Tax & It’s Implementation
Key benefits of the GST announcement are elaborate below:
1)    The cascading impact of taxation has been eased.
2)    There is uniformity in laws, rates of tax, and procedures across states.
3)    Indian products have been additional competitive within the international markets.
4)    The GST system is likely to enhance the general investment climate in Asian country.
5)    Uniformity within the rates of SGST and IGST can reduce tax evasion to an outsized extent.
6)    GST must be a less complicated system of taxation with smaller variety of exemptions.
7)    There are automatic and simplified methods for processes such as registration, refunds, returns of GST, tax payments, etc.
8)    The input tax credit method is going to be additional correct and clear, as electronic matching are going to be performed.
9)    A huge segment of small-scale retailers is also either exempt from tax or could benefit from low tax rates supported the combining theme. shoppers can more profit if purchases are made up of these small retailers.

After the study of primary & secondary data it can be conclude that, Tax administration has progressed and a lot of to be coated in reforming the legal system. it's a continual exercise for up revenue productivity and minimizing distortions. Coordinated reforms ought to be undertaken at the central, state, and native levels. a serious objective ought to be reduction of distortions and compliance prices. These new changes to make a replacement tax code had been planned to expect that lower taxes and easier rules can guarantee compliance and a lot of revenue. It may be over from the higher than discussion that merchandise and Services tax (GST) can offer an excellent support to shopper and producers through an in depth and complete coverage of products and services tax. GST promotes the economic unification of the country or state uniform mechanism of operations and implementations. However, its impact on prices might vary sector wise within the same economy in addition.

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