Eco San' toilets can be seen working in :

Options

A. Kerala
B. Andhra Pradesh
C. New Delhi
D. Tamil Nadu

Answer

**Step-by-Step Solution:**

1. **Understanding Eco San Toilets**: Eco San toilets, short for Ecological Sanitation Toilets, are designed to function without the use of water. They are particularly useful in areas where water is scarce or where there is a high risk of groundwater contamination.

2. **Identifying the Purpose**: The main purpose of Eco San toilets is to provide a sustainable sanitation solution that minimizes water use and prevents the contamination of groundwater sources.

3. **Geographical Locations**: These toilets are implemented in regions where traditional sanitation systems may not be feasible due to water scarcity or environmental concerns.

4. **Countries and Regions**: Eco San toilets can be found in various countries, but they are notably used in India and Sri Lanka. In India, they are particularly prevalent in the state of Kerala.

5. **Conclusion**: Based on the information gathered, the correct answer to the question is that Eco San toilets can be seen working in India, specifically in Kerala, and also in Sri Lanka.

**Final Answer**: Eco San toilets can be seen working in India (specifically in Kerala) and Sri Lanka.

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