I drive my car once a month, and when I started it today in Delhi, it got turned off. What could be the possible reason?

The possible reason your car is not starting is that maybe the battery gets damaged because of less usage of your car. Driving the car also charges the battery. If you don't drive it, the battery gets discharged. The other reason would be that the gasoline tank is empty.
Is a small crack on the windshield glass of a BMW X5 a matter of concern? Should I get my windshield glass replaced?

A small crack on the windshield glass of a BMW X5 is completely fine until or unless it is causing any damage to any passengers or the driver, but sometimes it's also the person’s choice how he or she wants their car, so you can get your windshield glass replaced. You can also contact Gomechanic for the best windshield glass replacement in Delhi.
Are there any BMW X5 wiring specialists located in Delhi?

BMW specialists in general are good with the wiring aspect of it as well. While seeking professional help, be on the lookout for experienced technicians who have previously worked on BMWs, like those at GoMechanic.
Does anyone provide a free car wash with car repair for a BMW X5 in Delhi?

Yes, GoMechanic provides a free complimentary car wash with any type of car repair service done for the BMW X5 at the workshop, as our workshops have one of the best workers who repairs your car with professionalism. Also, we provide free pickup and drop-off services too.