Rewrite the sentence in indirect speech.
Kumar said, "I am unwell."

Correct option is D

The correct option is (d) Kumar said that he was unwell.
Tense change: "Am unwell" (present simple) changes to "was unwell" (past simple) in indirect speech.
Pronoun change: "I" becomes "he" in indirect speech.
Time clause change: No time clause change necessary.
Reporting verb change: "Said" remains unchanged.
Corrected sentence: Kumar said that he was unwell.