1.Lack of utility facilities at ghats.
2.Lack of proper discharge of religious offerings.
3.Lack of creation of eco-friendly offerings made to the river.
4.Untreated urban sewage discharge.
5.Bathing & open defecation near river bank.
6.Discharge of human & animal corpses in the river.
7.Ever shrinking expanse of Ganges-lifeline of India.
8.Illegal and over-mining of sand.
9.Use of pollution causing motor boats.
10.Illegal fishing-disturbs the ecosystem of river.

My view is we shall follow below step:
1. Know what is exactly a problem
2. Find out root causes
3. Act to solve

I am attaching .pdf file for details.

The attachment notifies 10 major challenges and in order to change the face of Ganga , these need to be addressed with right policies and actions.Last but not least the major challenge is the " Mindset of people" if that can be addressed , everything else will follow. People shall be made aware their impressibilities and duties towards river Ganga!

The Major Challenges are :
1. In the name of religion many waste are put in river this is most difficult to control as it hurts people sentiments.
i think to stop this activity many platforms with pot are to be kept on the banks at regular intervals where people can put their diya and all other thing which they want to offer.
2. Holy Dips and washing clothes therein :
separate channels to be used to bathing the water of which should be treated first before it re enters the main stream

1. Install real time pollution level measuring equipment at various point along the Ganga2.Install display to make people aware of the pollution like air quality display in cities
3.Identify the target place to begin4. Define a target what level needs to reached5. Work backward to identify low hanging fruits to reduce6. Identify measure,laws to prevent further increase7. Identify key stakeholders and incentivize 8.measure improvement 9.Law to make polluting and offence10 Ghats be kept clean

Ten Major Challenges & Changes required to change the face of Ganga are enumerated in enclosed PDF file.

(1) Financing pollutant units/ industries/municipal bodies for setting up units to clean the effluents from the sources.(2) Enforcement by District Administration due to rampant corruption in authorities (3) Booking culprits under relevant penal provisions as Police is not equipped to handle such crimes. (4) Generating public awareness to report pollution in their areas (5) A toll free number on report of anonymous complaints of polluting sources. (6) Officers and their responsibiities

Need to create a waste water treatment plant in each city located near rivers and develop small scale industries in respective areas to use industries waste materials efficiently in stead of dumping all it in the rivers.

Challenges are - 1- Sewage from the city 2- Industrial waste 3- Polythene 4- Deforestation 5- Unplanned & useless constructions on Ganga. 6- Encroachment on Ganga 7- Crowd 8- Unmanaged & irregular Flow of ganga
9- Corruption 10- Ignorance by Govt & People of India

separate ghats to be built for bathing and no where else to be permitted, make reservation system for devotees if needed. the idols to visarjan must be made of mud, plastics to be dumped in special bins. Dust bin at every corner. Recruit all the beggars to sweep the town. restrict large parts of ghats inadmissible to common people while off festive seasons for few years for a recovery. terminate the licence of bad motorboats.