iPhone 14 fell from the 5th-floor balcony, and after that, the screen went completely black.
Phone is still on (vibration and sounds are coming), but the display is totally blank.
What could be the issue, and what is the repair cost in India?

Hello, sir. Your display has been completely damaged due to the heavy impact and needs replacement.
The iPhone 14 screen replacement cost depends on the quality you choose. The pricing starts from ₹2,199 for a basic compatible LCD. For better brightness and touch response, an OLED display is available for ₹5,999. OEM-quality screens are available up to ₹10,999.
For booking, you can visit: https://mheal.co.in/phone-repair/screen-replacement/iphone
Pro Tip: The screen replacement cost for the iPhone 14 in India at an Apple Authorized Service Provider is ₹25,500.
To contact an authorised service provider near you, visit: https://support.apple.com/en-in/iphone/repair?services=service