The correct answer is (c) Byasghat.
The Nayar River is a tributary of the Yamuna River in India. It originates in the Garhwal Himalayas and flows through the states of Uttarakhand and Himachal Pradesh. The Nayar River is a major source of irrigation and drinking water for the region.
The confluence point of the eastern and western Nayar rivers is at Byasghat, a village in the Chamoli district of Uttarakhand. Byasghat is a popular tourist destination, known for its scenic beauty and temples.
The other options are incorrect. Srikot is a town in the Pauri Garhwal district of Uttarakhand. Kotdwar is a town in the Haridwar district of Uttarakhand. Satpuli is a town in the Tehri Garhwal district of Uttarakhand.