Section 105(6) in The Central Motor Vehicles Rules, 1989
(6)Every heavy goods carriage [including trailers] [Added by G.S.R. 642 (E), dated 28.7.2000 (w.e.f.28.7.2000).] shall befitted with a red indicator lamp of size of thirty centimetres by ten centimetres on the extreme rear most body cross beam and in the case of a vehicle not constructed with body in the rear,the indicator lamp shall be fitted near the right rear light above the rear number plate:[Provided that every construction equipment vehicle of an unconventional or extraordinary type in travel mode shall be fitted or installed with a red indicator lamp of size of not less than 100 square centimetres on the extreme rearmost point of the body.] [Added by GSR 642(E), dated 28.7.2000 (w.e.f. 28.7.2000). ]
