Tennis doubles is a popular variation of tennis where four players, divided into two teams of two, compete on the same court.

1. Court and Equipment

2. Serving Rotation

3. Service Boxes

4. Doubles Alleys

5. Scoring

6. Let Rule

7. Service Faults

8. Service Foot Faults

9. Receiver's Position

10. Service Let and Net Cord Rule

11. Change of Ends

12. Scoring:

These are the basic rules for tennis doubles. Keep in mind that there may be some variations or additional rules in specific tennis tournaments or leagues, so it's a good idea to check the specific rules for the event in which you are participating.