ganga and yamuna are regarded as open sewers as people from all parts of the world take bath in the waters of these rivers. also different kind of dirty elements are being thrown in those rivers which also results in water pollution as well. these are some of the reasons why ganga and yamuna are regarded as open sewers.
Yamuna
Chamba river joins Yamuna a tibutory of Ganga ai Ettawa Up and Yamuna joins Ganga river at Allahabad.
Yamuna is the river passing through Delhi. I originates from place Yamnotri in Himalayas and merges in another river Ganga (also known as Ganges). The merged river is known as Ganga and hen merges into Bay of Bengal Sea.
The Yamuna is a river that is located in the northern India area. The Yamuna is also known as the Jumma or the Jamuna, and it is the largest tributary river of the Ganga (Ganges).
Yamuna does not fall into sea directly. It merges with Ganga at Allahabad.
Ganga, Yamuna and Brahmaputra.
Yamuna river meets with Ganga river near Allahabad, the city of Uttar Pradesh. The holy place is called Sangam.
It joins the river Yamuna which further join Ganga river
pondy
The Ganges is worshiped as the goddess Ganga in Hinduism.The Sarasvati River is worshiped as the goddess Sarasvati, also in Hinduism.
The seven rivers are counted as the holy rivers of India; one of the holiest rivers in India is Ganga or The Ganges. The rivers are the Ganga, Yamuna, Saraswati, Godavari, Narmada, Indus (Sindhu) and Kaveri.
The third river that joins the Yamuna and Ganga at the Sangam is the Sarasvati River. Although it is often considered a mythical river, it holds significant cultural and religious importance in Hinduism. The confluence of these three rivers at Prayagraj is a major pilgrimage site.