With reference to ‘Interstate and Intrastate trade & commerce’, consider the following statements:
1. The subject of ‘Inter-state trade and commerce’ is mentioned in the concurrent list under Seventh Schedule of the Constitution.
2. Parliament can impose restrictions on the freedom of trade within a state in the public interest.
3. A bill to impose restrictions on the freedom of trade within a state can be introduced in the state legislature only with the previous sanction of the President.
4. Parliament can appoint an appropriate authority for carrying out the constitutional provisions relating to the freedom of trade in the country.
How many of the above given statements are correct?