What is the purpose of clause (2) and clause (3) mentioned in the given context?
Clause (2) and clause (3) mentioned in the given context are related to the expenditure incurred by the State while carrying out any direction given to it under the respective clauses. In case, costs have been incurred in excess of those which would have been incurred in the discharge of the normal duties of the State if such direction had not been given, then the Government of India shall pay such sum as may be agreed or determined by an arbitrator appointed by the Chief Justice of India to the State in respect of the extra costs so incurred by the State.