Answer:
Varun told Ayaan that he should take care of his old parent.
Explanation:
In reporting or writing speeches, the direct form is when the exact words of the speaker are used along with the speech marks/ inverted commas. But in the indirect speech form, the inverted commas will be removed and the verbs in the direct speech are to be changed according to their tenses. This means that if the verb is in the present tense in the direct speech, then the indirect speech will use the corresponding past tense of that verb.
In the given example, Varun is talking to Ayaan about his (Ayaan's) old parent. Thus, the "you" and "your" in the speech refers to Ayaan. So, we take out the commas and the inverted commas and change the pronouns accordingly. And the modal verb "should" remains unchanged in a reporting speech.
Thus, the indirect speech of the given speech becomes-
Varun told Ayaan that he should take care of his old parent.