Additional features, settings, or issues not covered by specific Microsoft Teams categories
Hi Saurav,
As far as I know, Teams does sync membership with Office 365 group. If you remove a member from Teams client, this change will be immediately synced to Office 365 group. However, if you remove the members outside of Teams client, it can take up 2 hours to reflect the changes in Teams.
For your reference, see Office 365 Groups and Microsoft Teams. In this scenario, if you'd like to sync membership as soon as possible, you can remove the members in Teams client.
Feel free to let me know if you have further questions.
Regards,
Marvin