Which of the following fairs are held at Charkhi-Dadri district of Haryana?

Janmashtami
Dussehra
Sati fair
Both (A) and (B)

The correct answer is: Both (A) and (B).

Janmashtami and Dussehra are both major Hindu festivals that are celebrated in Charkhi-Dadri district of Haryana. Janmashtami is the birthday of Krishna, the eighth avatar of Vishnu, and is celebrated with great pomp and show. Dussehra is the victory of good over evil, and is celebrated with the burning of effigies of Ravana, the demon king.

A. Janmashtami is a Hindu festival that celebrates the birth of Krishna, the eighth avatar of Vishnu. It is one of the most popular festivals in India and is celebrated with great pomp and show. The festival is observed on the eighth day of the Krishna Paksha (dark fortnight) of the month of Bhadrapada (August–September).

B. Dussehra is a Hindu festival that celebrates the victory of good over evil. It is also known as Vijayadashami, Dashahara, Dasara, or Vijaya. The festival is observed on the tenth day of the month of Ashvina (September–October).

C. Sati fair is a Hindu fair that is held in the Charkhi-Dadri district of Haryana. The fair is held in the month of November and is dedicated to the goddess Sati. The fair is a major tourist attraction and is known for its vibrant atmosphere and cultural performances.

D. Both (A) and (B) are correct.