Option 1 -> Places Nadir Shah's invasion (1739) before the Third Battle of Panipat (1761), but incorrectly places Shah Jahan's reign (1628-1658) at the end.
Option 2 -> Correctly orders: Akbar's reign (1556-1605), Shah Jahan's reign (1628-1658), Nadir Shah's invasion (1739), and Third Battle of Panipat (1761).
Option 3 -> Incorrectly starts with Nadir Shah's invasion (1739) before the Mughal emperor reigns.
Option 4 -> Incorrectly places Nadir Shah's invasion first and Third Battle of Panipat before Shah Jahan's reign.
Hence, Option 2: (C), (D), (A), (B) -> The chronological sequence follows the Mughal empire timeline: Akbar's reign in the 16th century, followed by Shah Jahan in the 17th century, then the Persian invasion by Nadir Shah in 1739, and finally Ahmad Shah Abdali's victory at Panipat in 1761 -> correct