Section 353(11) in The West Bengal Motor Vehicles Rules, 1989
(11)Motor Vehicles inspectors shall wear two stars on both shoulders. The stars shall be pointed stars (star of India pattern, 25.4 mm. broad), The stars should be slightly frosted but without any design in the centre. Shoulder badges with letters as illustrated in Schedule X to these rules shall be worn at the base of the shoulder strap. The stars and the letters shall be of white metal.