Concept:Discretionary powers are those exercised by the President using his own judgment, not on the binding advice of the Council of Ministers.
Explanation:iii. Returning a bill to Parliament with objections is discretionary; the President may send a non-money bill back for reconsideration.
vi. Detaining a bill is the pocket veto; the President may withhold assent indefinitely because no time limit is fixed.
vii. Asking the Prime Minister for information on any matter is a discretionary power under Article 78.
viii. Asking the Council of Ministers to reconsider any advice is also discretionary, though the President must accept the final reconsidered advice.
i, ii and iv are normal constitutional powers exercised on ministerial advice or as formal duties.
v is not part of this discretionary list.
Answer:The correct combination is iii, vi, vii and viii. Hence, the correct option is E.