Mud

Shod

https://shodhganga.inflibnet.ac.in/

World

Ganges is such a river, which satisfies all the three worlds,

1. Devaloka, 
2. Miryulok and 
3. Patal Lok 

with its holy water.

1. Therefore, it is also called Satya Ganga. 
2. Ganga is known as Bhogavati in Patal Lok and in 
3. Baitralok as Vaitarani

According to the Puranas, Ganga is called Mandakini in heaven and Bhagirathi in Patala

https://freeglobaluniversity.blogspot.com/search/label/Puran

https://www.google.com/search?q=World+Crocodile

Seva

https://www.gangasevanidhi.org/

Garbage

Ved

Vedic version is that Ganga is formed when Indra slays the water-holding demon Vritta.

Death of Vritta releases the waters that he had covetously kept for himself, thus is born Ganga.

Then, Bhaghiratha the descendent of a king who can only get mukti if his ashes are scattered in ganga prays a lot to Shiva.

Shiva agrees and holds the tremendous force of Ganga falling from heaven directly on his jata (matte hairs).

Note : Vishnu puran.. as always has its own version Because ganga has appeared many times at many places

https://freeglobaluniversity.blogspot.com/search/label/Reincarnation

Saptami / Different Dates

http://www.iskcondesiretree.net/page/jahnu-saptami
http://www.harekrsna.com/sun/editorials/06-09/editorials4587.htm