Hi @Aditya Beniwal ,
in the following guide you will find all details in regrads to the installation of the Teams PowerShell module. This is an offcial documentation (Microsoft Learn):
Install Microsoft Teams PowerShell Module
https://learn.microsoft.com/en-us/microsoftteams/teams-powershell-install
Here you will find also references to both options:
Install the Microsoft Teams PowerShell module via PowerShell Gallery (recommended option).
Install the Microsoft Teams PowerShell module via Manual Download.
Microsoft Teams PowerShell Overview
https://learn.microsoft.com/en-us/microsoftteams/teams-powershell-overview
I hope I was able to help.
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Best Regards,
Stoyan