Section 93(1) in The Central Motor Vehicles Rules, 1989
(1)The overall width of a motor vehicle, measured at right angles to the axis of the motor vehicle between perpendicular planes enclosing the extreme points, [shall not exceed 2.6 metres.] [Substituted by GSR 221(E), dated 28.3.2001, for 'shall not exceed'(w.e.f. 28.3.2001).][* * *] [Clauses. (i) and (ii) omitted by GSR 221(E), dated 28.3.2001 (w.e.f. 28.3.2001).][* * *] [Clauses. (i) and (ii) omitted by GSR 221(E), dated 28.3.2001 (w.e.f. 28.3.2001).]Explanation. - For purposes of this rule, a rear-view mirror, or guard rail or a direction indicator [rub-rail(rubber beading) having maximum thickness of 20 mm on each side of the body] [Substituted by GSR 221(E), dated 28.3.2001, for '(when in operation)'(w.e.f. 28.3.2001).]shall not be taken into consideration in measuring the overall width of a motor vehicle.[(1-A) The overall width of a construction equipment vehicle, measured at right angles to the axis of the construction equipment vehicle between perpendicular planes enclosing the extreme points, shall not exceed 3 metres while in the travel mode and such construction equipment vehicle [shall be painted by yellow and black zebra stripes on the portion of the width that exceeds 2.6 metres] [Inserted by GSR 642(E), dated 28.7.2000 (w.e.f. 28.7.2000).] on the front and rear sides duly marked for nighttime driving/parking suitably by red lamps at the front and rear:][Provided that the zebra stripes need not be used on attachments.] [Inserted by GSR 116(E), dated 27.2.2002 (w.e.f. 27.8.2002).]
