Explanation:

Explanation:
Cabinet Committees are extra-constitutional in emergence. In other words, they are not mentioned in the Constitution. However, the Rules of Business provide for their establishment.
Statements 1 and 2 are correct: They are of two types—standing and ad hoc. The former are of a permanent nature while the latter are of a temporary nature. The ad hoc committees are constituted from time to time to deal with special problems. They are disbanded after their task is completed. They are an organizational device to reduce the enormous workload of the Cabinet. They also facilitate in-depth examination of policy issues and effective coordination. They are based on the principles of division of labor and effective delegation.
Statement 3 is not correct: They are set up by the Prime Minister according to the exigencies of the time and requirements of the situation. Hence, their number, nomenclature, and composition vary from time to time. Their membership varies from three to eight. They usually include only Cabinet Ministers. However, the non-cabinet Ministers are not debarred from their membership. They are mostly headed by the Prime Minister. Sometimes other Cabinet Ministers, particularly the Home Minister or the Finance Minister, also acts as their Chairman. But, in case the Prime Minister is a member of a committee, he invariably presides over it.