Section 251(4) in The West Bengal Motor Vehicles Rules, 1989
(4)[ No motor vehicle other than an educational institutional bus shall be painted in mustard yellow with a navy blue band of width 23 cm. along the centre of the body of the vehicle. The name of the educational institution shall he inscribed on the band in white.] [Sub-rule (4) inserted vide clause 2(16) off the Notification No. 5305-WT/6M-21/2002 dated 12.12.2003 (w.e.f. 16.12.2003).]