Hi Ashik Patel,
basically, to enable the Power Platform Integration for Dynamics 365 FO, follow these steps:
https://docs.microsoft.com/en-us/dynamics365/fin-ops-core/dev-itpro/power-platform/enable-power-platform-integration
To summarize it, you have to activate the Power Platform Integration in
- Lifecycle Services (LCS) and the Power Platform
When everything went well, you will see in your LCS by selecting the specific environment in the Tab "Power Platform Integration" more detailed data as the following example shows:

Moreover you will have a new environment in your Power Platform Admin Center (or combined) as the following example shows:

All belonging components between LCS and the Power Platform for this environment will now be enabled for the Dynamics 365 project. As not all components will be activated/setup with the integration you need to go on with the work manually. Therefore you can easily select/setup the needed features in Dynamics 365.
Rg,
Alexander
*Due to the complex and different possibilities of deploying Dynamics 365 I highly recommend not to setup the application without some expert/partner or support. (For more information contact me under anassl@inno-solutions.info or visit www.inno-solutions.de)
*The Information comes directly from the manufacturer or provider and are validated (not guaranteed) up to date of creation of the posting.
References:
- Microsoft Licensing Guide
- Microsoft Doc`s/Learn