Section 115D(3)(a) in The Central Motor Vehicles Rules, 1989
(a)The vehicle intended for conversion complies with following conditions, namely:-(i)It belongs to category L5 or category M or category N1 or category N2;(ii)It was manufactured on or after 1st January 1990;(iii)It is not provided with permits for carrying dangerous or hazardous goods, as defined in CMV Rules, 1989;