Left airpod pro is not producing any sound. It is charging but no sound.

Hi Razib_dhaka

welcome to the Apple (user-to-user) Community.

Re: "Left airpod pro is not producing any sound. It is charging but no sound".

Apple support have an article online (link below) that may be helpful:

Learn what to do: If your left or right AirPod isn't working - Apple Support

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More trouble-shooting if needed:

You might want to check the volume level on the AirPods themselves:

Pause, skip, and adjust volume with your AirPods and AirPods Pro - Apple Support

Make sure nothing (a speck of dirt or wax) is blocking the microphone or speaker

How to clean your AirPods, AirPods Pro, AirPods Max, and EarPods - Apple Support

Headphone Accommodations works with AirPods Pro:

How to: Customize headphone audio levels on your iPhone or iPad - Apple Support

Resource:

AirPods User Guide - Apple Support

More support . info. if needed:

AirPods Support Website:

Find all the topics, resources, and contact options you need for your AirPods....

AirPods Support - Official Apple Support

All the best :-)