Choose the correct transformation of the given sentence in Indirect S…

The correct answer is Option (3) → Tanvi asked the shopkeeper if he could exchange that kurta for a bigger size.

Changing a question with “can” into indirect speech:

Change	Direct	Indirect	Why
Reporting verb	said to the shopkeeper	asked the shopkeeper	Tanvi puts a question. So “said to” becomes “asked”.
Joining word	“ ” (quotation marks)	if	The question is answered with “yes” or “no”. So it is joined with “if” (or “whether”).
Word order	Can you exchange	he could exchange	The question becomes a statement. So the subject “he” comes before the verb, and the “?” goes.
Tense change	can	could	The reporting verb “said” is in the past, so “can” becomes “could” (could + base form (V1)).
Pronoun change	you	he	The shopkeeper is the person spoken to. In the report “you” becomes “he”.
Time and place words	this kurta	that kurta	The report is made later. So “this” becomes “that”.
Full sentence	Tanvi said to the shopkeeper, “Can you exchange this kurta for a bigger size?”	Tanvi asked the shopkeeper if he could exchange that kurta for a bigger size.

“Will” becomes “would” in the same way. Example: Tara said to me, “Will you join the dance club?” → Tara asked me if I would join the dance club.

Why the Other Options are Incorrect?

Option 1: Tanvi asked the shopkeeper if he can exchange that kurta for a bigger size. — Incorrect. “Can” is left unchanged. After the past “said” it becomes “could”.

Option 2: Tanvi asked the shopkeeper if could he exchange that kurta for a bigger size. — Incorrect. “Could he” keeps the question order. In indirect speech the subject comes first: “if he could”.

Option 4: Tanvi asked the shopkeeper that he could exchange that kurta for a bigger size. — Incorrect. “That” joins a statement. A yes/no question is joined with “if” or “whether”.