Section 2(xxi) in Tamil Nadu District Municipalities Building Rules, 1972
(xxi)[ "solar assisted water heating system" means a device to heat water using solar energy as heat source; [Added by G.O. Ms. No. 112, Municipal Administration and Water Supply Department (MA-I), dated the 16th August 2002, published in Tamil Nadu Government Gazette, Part III, Section 1(a), dated the 11th September 2002.]
