The Goods and Services (GST) Tax will also bring ease of business by reducing bribery and corruption and eliminate unending traffic jams at toll and tax posts all over the country, he said.
Terming the GST as a first major step to strengthen the federal structure, Singh said "the new legislation will give financial autonomy to states including J&K".
He criticised those making allegations that the GST will affect the "so called" autonomy of the state.
Singh said that the states had a major say in the GST council decisions.
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He said that J&K and some other states had got some tax related advantages under the regime.
The Union minister said that most of the small and medium level traders in the state will get benefit of exemption and many will not have to pay tax at all.
He said that certain essential medicines including Insulin etc will also become cheaper.
The minister said that it is also important to understand the disadvantages of a scenario in which the GST is rolled out in entire India except J&K as both traders and consumers of the state will have to pay "double" tax in that case.