Correct option is C
The provision relating to drinking water is found in Schedule XI of the Constitution of India, 1950, which deals with the powers, authority, and responsibilities of the Panchayats, including water management at the local level.
Information Booster:
Schedule XI deals with the devolution of powers and responsibilities to Panchayats to plan and implement programs for economic development and social justice concerning subjects listed therein.
Subjects like agriculture, rural housing, sanitation, poverty alleviation, and drinking water are critical parts of rural governance.
Additional Information:
Schedule XII (added by the 74th Constitutional Amendment Act, 1992) lists functions of Municipalities (urban local bodies) and also includes "water supply for domestic, industrial and commercial purposes".
Schedule VII divides powers between Union and States (Union List, State List, Concurrent List).
Schedule IX relates to validation of certain land reform laws, protecting them from judicial review.