Which of the following is an Indian 'not for profit' organisation, working on sustainable solutions to make sanitation and water accessible to all?

Sulabh International

The correct answer is Option 4 - Sulabh International

Sulabh International is a prominent organization founded by Dr. Bindeshwar Pathak. It focuses on developing and promoting low-cost, environmentally friendly sanitation solutions in India. They advocate for inclusive sanitation practices and strive to make them accessible for all.