The famous Mughal Emperor Aurangzeb ruled India for which period?
Explanation
Aurangzeb (Muhiuddin Muhammad Aurangzeb) ruled India from 1658 to 1707 - a period of 49 years. He was the longest-ruling of the great Mughal emperors. The key to solving this item is to identify exactly what the question tests—the relevant ruler, event, institution, work, place, policy, date, or historical association—and then connect that clue with 49 years. This direct association is more reliable than choosing an option merely because it belongs to the same broad medieval period. The remaining choices—37 years, 25 years, 52 years—serve as distractors. Candidates should therefore compare each option with the precise wording, period, agency, and outcome mentioned in the stem. The answer is thus not a guess based on familiarity: it follows from the question-specific connection between 49 years and the subject asked in the stem.