AirPods Pro 2 won't enter pairing mode after reset

Hello

I was using AirPods pro 2 with my iPhone and everything was fine until last evening. I connected the airpods to my iPhone and only one of them was working, the other one wasn't. So I tried to reset them. After resetting by pressing the setup button on the case, the light blinked amber making a sound and then blinked a green light. After the process, I tried to connect the airpods with my phone but the case doesn't show blinking white light (paring mode). Automatic connection after holding them next to iPhone also ain't working.

I have tried all troubleshooting steps - resetting airpods, restarting the phone, trying to reconnect but nothing has been helpful.

What should be the next step to get them connected and get to use them again ?

Please help.

Thanks in advance.