Hi Vidhyut,
There is some functionality that came out with 13.2 that allows you to view where a component is used -- if you are on the Pages tab in Studio on a 13.2+ community, you can go to a component (like you were going to add it to a page) and including of clicking the button to add it to the page, you should see a link that says "info":
If you click on the "info" link, apop-up winow will show you where the component is used (if it's used anywhere) -- here is a screen shot:
Note that not all components will have an info link, but all custom content components do (but will only show you what pages they are used on if they are used on at least 1 page).
-Doug
