Explanation:

.The confluence of satluj and beas is at Harika Patan.Harike Wetland also known as "Hari-ke-Pattan", with the Harike Lake in the deeper part of it, is the largest wetland in northern India in the border of Tarn Taran Sahib district and Ferozepur district  of the Punjab state in India.The wetland and the lake were formed by constructing the headworks across the Sutlej river in 1953. The headworks is located downstream of the confluence of the Beas and Sutlej rivers just south of Harike village.