Section 105(2)(i) in The Central Motor Vehicles Rules, 1989
(i)[two lamps (hereinafter referred to as the rear lamp) showing to the rear a red light visible in the rear from a distance of one hundred and fifty-five metres; and in the case of a motor cycle one lamp showing a red light to the rear visible from a distance of seventy-five metres] [Substituted by GSR 214(E), dated 18.3.1999 (w.e.f. 18.3.1999).]; and