because they rise from semi arid regions and do not carry much water in them .
Bhagirathi and Alaknanda are two most important tributaries of Ganga. Both tributaries meet at Devprayag to form Ganga.
ganga
The Ganges, or Ganga, is the longest river that has its origin in India. It is 1,560 miles (2,510 kilometers) long.
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.
River called son
hugli is not a tributary. it is distributary of ganga river
kaveri
confluence and they are called tributaries of the river they join example of tributaries - tributaries of ganga (Ganges) are The Chambal The Betwa The Son The Yamuna The Gandak The Ghaghara The Kosi
The major northern rivers are the Ganga, Indus and Brahmaputra. The whole of the Northern plains is drained by the tributaries of these rivers. Tributaries of Indus are Satluj, Beas, Chenab, Ravi, Jhelum, Zaskar etc. Tributaries of Ganga are Chambal, Betwa, Sind, Damodar, Yamuna etc. Tributaries of Brahmaputra are Kolong, Lohit, Raidak, Dihing, Subansiri, Bhogdoi etc.
Ganga river is fed by many perennial rivers and steams in its higher course. Mandakini originates from a glacier near Kedarnath in Uttarakhand (a state in India). Mandakini joins Alaknanda at Rudraprayag which in turns proceed to meet Bhagirathi river in Devaprayag to form river Ganga. As being one of ganga's tributaries, Mandakini is a synonym for river Ganga.
The main tributaries of Ganga are: The Chambal The Betwa The Son The other rivers which join it are: The Yamuna The Gandak The Ghaghara The Kosi
The Ganga River originates from the Gangotri Glacier, which is located in the Indian state of Uttarakhand. This glacier is situated in the Himalayas and is one of the primary sources of the Ganga, which is considered one of the holiest rivers in India. The river begins its journey as Bhagirathi before merging with other tributaries to form the Ganga.