(1) While determining the service fee, the commission shall determine the fee on the basis of depreciation deduction, appropriate profit, cost of service operation, change in consumer price list, royalty, policy of Nepal government regarding drinking water or sanitation service, changes in foreign currency exchange rate and the things mentioned in section 11. .
(2) While determining the tariff on the basis of sub-section (1), the Commission shall also consider the quality of water, the purchasing power of the consumers and the level of service, keeping in mind the wider interests of the consumers.