The purpose of Directive Principles of State Policy is to lay down positive instructions which would guide State Policy at all levels. This means that the Directive Principles provide guidelines for the government to formulate policies and make decisions that promote the welfare of the people and ensure a just and equal society. These principles are not legally enforceable, but they serve as a moral and ethical compass for the government’s actions. Option 2, to implement Gandhiji’s idea for a decentralized state, is not the purpose of Directive Principles. While Gandhi did advocate for decentralized governance, this specific objective is not mentioned in relation to Directive Principles. Option 3, to check the use of arbitrary powers by the government, is also not the purpose of Directive Principles. While the principles do promote good governance, their main focus is on providing positive instructions for the government, rather than limiting its powers. Option 4, to promote the welfare of the backward sections of society, is partly true, as the Directive Principles advocate for the protection of the interests of all sections of society, especially those who are socially and economically disadvantaged. However, this is not the sole purpose of Directive Principles.