Hello, @jitangupta

Could you please confirm if you’ve deployed the .Net Core application using our article:

https://www.digitalocean.com/community/tutorials/how-to-deploy-an-asp-net-core-application-with-mysql-server-using-nginx-on-ubuntu-18-04

You can configure the LAMP stack on the existing droplet, but keep in mind that sometimes when you have too many services running things can get “messy”.

An really quick example is the following - two services might share one or more dependency packages. If you happen to install or update one of those dependencies this can cause an issue for one of the services as sometimes they require a specific version in order to run.

I will highly recommend you to backup your droplet by taking a snapshot and then go with the LAMP stack configuration. In this way if anything goes wrong you can always restore your droplet.

You can check our tutorial on how to create snapshots of droplets:

https://www.digitalocean.com/docs/images/snapshots/how-to/snapshot-droplets/

Hope that this helps!
Regards,
Alex