The correct answer is: A. Indore
The Indori river is a tributary of the Chambal River. It originates near Indore in the Indian state of Madhya Pradesh. The river flows for about 100 kilometers before joining the Chambal River near Kota in Rajasthan.
The Indori river is a perennial river and is a major source of irrigation for the region. The river is also a popular destination for fishing and boating.
The other options are incorrect because they are not near the source region of the Indori river.
Option B: Kaithal is a city in the Indian state of Haryana. It is located about 200 kilometers from the source region of the Indori river.
Option C: Bhiwani is a city in the Indian state of Haryana. It is located about 150 kilometers from the source region of the Indori river.
Option D: Karnal is a city in the Indian state of Haryana. It is located about 100 kilometers from the source region of the Indori river.