Here are some annoyances I face on a daily basis on Delhi NCR roads:

1. Uncles on scooters with no mirrors who keep on sliding on the right side.
2. Dudes on bikes who would drive like nuts, cut like creeps and would die if you do not push the break at the right time.\
3. Brothers in decent cars who drive on the right side of the road but slowly. Even below the legal permissible top speed limits. If you are to drive on the right side of the road, drive faster or let the traffic pass you.
4. Commercial vehicles who try to overtake each other. Since they are too slow in doing that they block the traffic following them.
5. Three Wheelers are a complete mess. They do each and everything of the above and more.