The correct answer is: A. 10 minutes.
According to the Indian Railway Ministry, a train is considered to be delayed if it arrives at its destination more than 10 minutes beyond its scheduled time. This rule applies to all trains, including express trains, mail trains, and passenger trains.
There are a number of reasons why a train might be delayed. These include bad weather, mechanical problems, and track work. In some cases, trains may also be delayed due to overcrowding or security checks.
If you are traveling by train and your train is delayed, you should check the status of your train on the Indian Railways website or app. You can also contact the Indian Railways helpline for more information.
Here are some brief explanations of each option:
- Option A: 10 minutes. This is the correct answer. According to the Indian Railway Ministry, a train is considered to be delayed if it arrives at its destination more than 10 minutes beyond its scheduled time.
- Option B: 9 minutes. This is not the correct answer. According to the Indian Railway Ministry, a train is considered to be delayed if it arrives at its destination more than 10 minutes beyond its scheduled time.
- Option C: 4 minutes. This is not the correct answer. According to the Indian Railway Ministry, a train is considered to be delayed if it arrives at its destination more than 10 minutes beyond its scheduled time.
- Option D: 3 minutes. This is not the correct answer. According to the Indian Railway Ministry, a train is considered to be delayed if it arrives at its destination more than 10 minutes beyond its scheduled time.