The correct answer is: A. Bhiwani
Uttari Haryana Bijli Vitran Nigam Limited (UHBVNL) is a state-owned electricity distribution company in Haryana, India. It is responsible for the distribution of electricity in the northern districts of the state, including Bhiwani.
Bhiwani is a district in the northern Indian state of Haryana. It is located in the Hisar division and is the headquarters of the Bhiwani district. The district has a population of over 1.5 million people and is one of the most populous districts in Haryana. The district is known for its agriculture and its production of cotton.
The other options are incorrect because they are not covered under UHBVNL. Kaithal is a district in the Kurukshetra division of Haryana. Rewari is a district in the Gurgaon division of Haryana. Mewat is a district in the Faridabad division of Haryana.