Road signs in India
Road signs in India are governed by the Indian Roads Congress. For the most part, they tend to follow European practices closely, usually identical to United Kingdom or the Vienna Convention on Road Signs and Signals. However yellow rectangular signs that do carry such messages like "Be gentle on my curves" and "Danger creeps when safety sleeps" are present nationwide.
The official typeface for road signs in India is Transport and Arial. The Official typeface for Highway shields is Highway Gothic. Though sometimes, road signs may use hand-painted fonts.
Most urban roads and state highways have signs in the state language and English. National highways have signs in the state language, Hindi and English.
History
From 1963, a circle with a red diagonal slash shows prohibited activities and circles without slashes show rules, blue circles indicate compulsory instructions and triangles with red borders indicate cautions and dangers. Road signs with imperial measures were fully replaced with their metric counterparts.Prior to 1963, street signs with imperial measurements were used, the warning signage used was triangle above a rectangle which showed dangers and warnings similar to the pre-worboys design used in the United Kingdom and the mandatory signs used were red circles, some with a band such as No Parking and Closed, but some with a rectangular plates that would give written warnings.