Is a taxi driver permitted to drop passengers next to a sign or marking that prohibits stopping or parking?

1. He is permitted to stop only if instructed to do so by a policeman.
2. Correct answer: Yes, on an urban road only.
3. Only share-taxi drivers are permitted to do so.
4. Yes, on all types of roads.

WhyA taxi may drop off passengers under a no-stopping sign, but only on an urban road and not on a crossing, before it or inside an intersection. Outside towns there is no such allowance.