A member of a State Public Service Commission can be removed from office by which authority?

The correct answer is B, the President of India. Under Article 317, the chairman or any other member of a Public Service Commission, including a State Public Service Commission, can be removed from office only by an order of the President on the ground of misbehaviour, and only after the Supreme Court has held an inquiry on a reference made by the President and has reported that the member ought to be removed.

Option A is the trap, because the Governor appoints the chairman and members of a state commission under Article 316 and may suspend a member while a reference is pending; the power to appoint, however, does not carry the power to remove, and this split is the whole point of the provision, which protects the independence of the commission. Option C is wrong because the Chief Minister has no role in the matter at all. Option D is wrong because a resolution of the state legislature is not required; Parliament is involved in the removal of judges, not of commission members. Note also that a member may resign by writing to the Governor, since he made the appointment.