Actually, no need to report this.
If you check the airport page for VIDP on the X-Plane scenery gateway, you can see that a new scenery (which includes the new runways) has already been submitted and approved: X-Plane Scenery Gateway
If you go through the history you can see that the scenery currently in X-Plane was last modified in 2017. A new scenery was submitted in 2024, and is approved as of May 3rd. So it will be included in a future update of X-Plane automatically.
For the time being, you’ll have to enter the flight plan manually, and use runway 29. You won’t be able to load a fligthplan that references 29R.