Step 1: Link each play to its writer.
A good way to answer is to match every title in the list with its author, and then see which one belongs to Utpal Dutt.
Step 2: Match the titles.
Andhayug goes with Dharamvir Bharati. Baki Itihas goes with Badal Sircar. Kallol goes with Utpal Dutt. Aswatthama is a character from the epic, and the title is not tied to Utpal Dutt.
Step 3: Why Kallol fits.
Utpal Dutt was a leader of Bengali political theatre. Kallol, staged in 1965, is about the revolt of Indian naval ratings in 1946. It was so strong that it brought him trouble with the authorities.
Step 4: Rule out the rest.
Since the other three titles are matched with other authors or with no particular work of his, they cannot be the answer.
Final Answer:
The answer is option (3), Kallol.