Answer :
Answer: Extremely important to India's Hindu population
Explanation: Aside from providing drinking water and irrigating fields, The Ganges River is considered their( Hindus)most sacred river, and it's worshiped as the goddess Ganga Ma or "Mother Ganges".
I suggest watching Why the Ganges River Important ? Video
It's about (5:45) long and should give u enough info
Hope it helps:)