Which interface should be implemented so that we can use the lightning component as a tab like in vf page?

Hello Chanchal,

You can add Lightning Component to your Visualforce Page. There are three steps to add Lightning components to a Visualforce page.
Step 1:- Add the Lightning Components for Visualforce JavaScript library to your Visualforce page using <apex:includeLightning/> component.
Step 2:- Create and reference a Lightning app that declares your component dependencies.
Step 3:- Write a JavaScript function that creates the component on the page using $Lightning.createComponent().

Thanks