The correct answer is: A. Faridabad.
The Kalka fair is held in the district of Faridabad, Haryana. It is a religious fair that is held every year in the month of February. The fair is dedicated to the goddess Kali and is attended by thousands of people from all over the country. The fair is a major tourist attraction and is known for its vibrant atmosphere and colorful displays.
The fair is held at the Kalka Devi Temple, which is located in the town of Kalka. The temple is dedicated to the goddess Kali and is one of the most important Hindu temples in the region. The fair is a major pilgrimage site for Hindus and is also a popular tourist destination.
The fair is held for a period of seven days and is marked by a number of religious and cultural events. The main event of the fair is the procession of the goddess Kali, which is carried out on the last day of the fair. The procession is accompanied by music, dancing, and singing.
The fair is also a major shopping event and is known for its stalls selling a variety of goods, including clothes, jewelry, and souvenirs. The fair is a great opportunity to experience the culture and traditions of Haryana.
The other options are incorrect because the Kalka fair is not held in those districts.