How to work multiple developers in single ionic project?

is there any way to implement svn or github?

Yes, there is. Just like in all other software development projects.

okay Sujan, Can you explain me to connect with TFS?

Simply put the project on github for example

I do not have to use github. I can only use tfs in my organisation.

The way each other project is added to TFS.
https://docs.microsoft.com/en-us/vsts/accounts/create-team-project?tabs=vsts I guess.