The correct answer is Malik Kafur.

Option 1, Chandragupta II, is incorrect because he was the Gupta Emperor who ruled from 380-415 CE. His military campaigns primarily focused on expanding the Gupta Empire across the Indian subcontinent, not in the region indicated on the map.

Option 2, Harshavardhana, is also not correct. Harshavardhana, or Harsha, was an emperor in North India from 606 to 647 CE and his main military campaigns were in northern regions of the Indian subcontinent, which differs from the route presented in the map.

Option 3, Rajendra Chola, is not the correct answer either because even though Rajendra Chola had significant military successes, his expeditions primarily focused on the South and Southeast Asian regions and naval conquests.

Option 4, Malik Kafur, is the correct answer provided. Malik Kafur was a military general under the Delhi Sultanate ruler Alauddin Khilji in the 14th century. He conducted raiding expeditions in the southern parts of India, which matches the route indicated in the map.