Hello Mr.  PRAKASH CHANDRA ...

Hello Mr.  PRAKASH CHANDRA NAYAK,

These questions have targeted one of the most important factors in Ganges pollution. The problem has to be solved rather than compromised. You may go through the Bill Gates Foundation, who have done a lot on this subject. Just searching for: "bill gates foundation program on toilets:"

The Bill & Melinda Gates Foundation’s Water, Sanitation & Hygiene program is said to “focus on developing innovative approaches and technologies that can lead to radical and sustainable improvements in sanitation in the developing world.” Their challenge guidelines stated that the end product couldn’t use any water, power or sewage systems and ideally had to operate on a targeted cost of just five cents per use. 

All regards,

Mashallah