Traffic rules in India are set and regulated by the Ministry of Road Transport and Highways, and they are enforced by the respective state and union territory traffic police. Here's an overview of some key traffic rules in India:

1. **Driving License:**

- It is mandatory to have a valid driving license to operate a motor vehicle. - Different classes of vehicles require different types of licenses.

2. **Traffic Signals and Signs:**

- Follow traffic signals and obey road signs. - Red means stop, yellow indicates caution, and green means go.

3. **Speed Limits:**

- Obey speed limits specified for different types of roads. - Speed limits are often indicated by road signs.

4. **Seat Belts and Helmets:**

- Seat belts are mandatory for all occupants in a car. - Helmets are compulsory for two-wheeler riders and passengers.

5. **Mobile Phones:**

- Use of mobile phones while driving is prohibited unless using a hands-free device.

6. **Drinking and Driving:**

- Driving under the influence of alcohol or drugs is strictly prohibited.

7. **Overtaking:**

- Overtake from the right and only when it is safe to do so. - Do not overtake near intersections, pedestrian crossings, or on curves.

8. **Lane Discipline:**

- Stay within your lane and follow designated lanes. - Keep left unless overtaking on highways.

9. **Horns:**

- Use the horn judiciously and avoid unnecessary honking.

10. **Pedestrian Priority:**

- Pedestrians have the right of way at pedestrian crossings. - Yield to pedestrians at zebra crossings.

11. **School Zones:**

- Follow reduced speed limits in school zones. - Exercise extra caution near schools and watch for children.

12. **No Parking Zones:**

- Observe no-parking zones and other parking regulations. - Park only in designated areas.

13. **Public Transport Rules:**

- Give way to public transport vehicles. - Follow rules regarding boarding and alighting from buses.

14. **Emergency Vehicles:**

- Give way to emergency vehicles such as ambulances and fire trucks.

15. **Vehicle Emission:**

- Ensure your vehicle complies with emission standards. - Regularly check and maintain your vehicle.

It's essential for drivers to be aware of and adhere to these rules to ensure road safety and contribute to a smooth flow of traffic. Please note that traffic rules may vary slightly between different states and union territories, so it's advisable to check the specific regulations applicable to your location.