@Mohd_khalidKhan Same Issue but I solved it eventually!
- Open Settings App
- Network and Internet
- SIMs
- Navigate to bottom
- “Access point names"
- Tap “Jio4G” or “jionet"
- Tap 3 dots on the top right corner
- “Delete APN”
- Exit APN settings but stay in SIMs settings
- Toggle off the “Automatically select network"
- Tap “chose network” and wait for “Jio True5G” to appear on screen.
- Tap it and wait for it to connect
- If it fails, keep repeating step 12
- Once it connects which it usually does
- Exit “Chose Network" and enter “Access point names” again
- Click 3 dots above and tap “Reset to default”
- It should work, if it did not. Keep repeating!
It worked for me and should work for most of the people!
If you are still confused, I will make a Video on it
