Request for information on the pollution level in the Ganges river

Dear India Water Portal,

Hello! My name is Morgane Roos and I am a Swiss student. I am working on and have to produce a geographic analysis for which I have chosen the subject of Varanasi and the Ganga. This is because I liked this city a lot during my journey in India.

I have contacted you in the hope that you can give me current information about the state of waters of the Ganga in Varanasi (pH, BOD, DO, fecal coliform etc). I thank you in advance for your help without which I will not be able to complete my work successfully