Hi @SALIL RAY ,
Did you run the setup file as administrator? Did you install python or R-support feature? Suggest you only installed SQL server database engine. If you want to use other features, you can add the features later.
If they are not the reason for your issue, please share us the setup log for analysis. Refer to View and Read SQL Server Setup Log Files.
If the response is helpful, please click "Accept Answer", thank you.