Hi Team,
I found another way - By Forking the following repository into my GitHub account.
https://github.com/MicrosoftDocs/pipelines-dotnet-core
with the use of
Create your first pipeline - https://learn.microsoft.com/en-us/azure/devops/pipelines/create-first-pipeline?view=azure-devops&tabs=net%2Cyaml%2Cbrowser%2Ctfs-2018-2
Now successfully created the pipelines and first build ran succesffully.