Correct Answer: (b) I, IV, II, III
Solution:The correct chronological order of the above-mentioned events is battle of Daurah (1532 A.D.), Battle of Chausa (1539 A.D.), Battle of Kanauj (1540 A.D.) and Battle of Samugarh (1658 A.D.). Humayun defeated Mahmud Lodi in battle of Daurah. Sher Shah defeated Humayun in the Battle of Kanuaj. The Battle of Samugarh was fought between Dara Shikoh and his two younger brothers Aurangzeb and Murad Baksh. Battle of Chausa was fought between Sher Shah and Humayun.