Question

The central government deals with defence,coinage,currency and foreign affairs of the country. Why ?

Answer 1

Explanation:

Union list

The Constitution provides for a three-fold distribution of legislative subjects between the Union and the states, viz., List-I (the Union List), List-II (the State List) and List-III (the Concurrent List) in the Seventh Schedule:

(i) The Parliament has exclusive powers to make laws with respect to any of the matters enumerated in the Union List. This list has at present 100 subjects (originally 97 subjects) like defense, banking, foreign affairs, currency, atomic energy, insurance, communication, inter-state trade and commerce, census, audit and so on.

(ii) The state legislature has in normal circumstances exclusive powers to make laws with respect to any of the matters enumerated in the State List. This has at present 61 subjects (originally 66 subjects) like public order, police, public health and sanitation, agriculture, prisons, local government, fisheries, markets, theaters, gambling and so on.

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(iii) Both, the Parliament and state legislature can make laws with respect to any of the matters enumerated in the Concurrent List.

Answer 2

It deals with their proper functioning and regulation.

• A unitary state's governing authority is the central government.
• Maintaining national security and practising foreign diplomacy, including the power to sign binding treaties, are common tasks of this level of government that are not provided to lower levels.
• The Constitution's Seventh Schedule establishes a three-fold division of legislative topics between the Union and the states.
• It has sole authority to enact legislation on any of the issues included in the Union List. Defense, finance, international events, census, currency, coinage, energy,  commerce,  audit, and other topics are now on this list.