The Ganges River originates in China.
The Ganges River originates from the southern foothills of the Himalayas. After flowing through the Indian states of Uttarakhand, Uttar Pradesh, Bihar, Jharkhand and West Bengal, it enters Bangladesh and is renamed the Ganges River. The Dema River joins the Jamuna River downstream of the Brahmaputra River in Bangladesh, and finally flows into the Bay of Bengal. The section where it enters the sea is called the Meghna River.
The Ganges River Basin is one of the birthplaces of Indian civilization. It is not only the holy river of Hinduism today, but also the place where Buddhism arose in the past. There are still a large number of Buddhist holy sites remaining.
Extended information:
The Ganges River Basin is the largest river system in the South Asian subcontinent. The water supply depends to a certain extent on the rain brought by the southwest monsoon in July and the flowing water from the melting snow in the Himalayas during the hot season from April to June.
Precipitation in the Ganges Basin occurs with the southwest monsoon, but also with tropical cyclones originating in the Bay of Bengal during June. Only light rainfall occurs during December. The average annual rainfall ranges from 760cm at the west end of the basin to 2,286cm at the east end.
The delta region is hit by severe cyclonic storms between March and May before the start of the rainy season and in September after the rainy season ends. Some of these storms caused massive loss of life and destruction of homes, crops, and livestock. One storm in November 1970 was of catastrophic proportions, killing at least 200,000 and possibly as many as 500,000 people.
Reference: Baidu Encyclopedia_Ganges