Ujjayini, also known as Ujjain, is not located on the banks of the Ganga River. It is situated on the banks of the Kshipra River in Madhya Pradesh. Ujjayini is a significant religious and historical city, known for the Mahakaleshwar Jyotirlinga, one of the twelve Jyotirlingas dedicated to Lord Shiva. The other options—Rishikesh, Kashi (Varanasi), and Haridwar—are all located along the Ganga River and hold immense spiritual significance in Hinduism.