Hi Amit,
Unfortunately, there isn’t a way to do this that is built into the Events Calendar or any of its add-ons directly.
This does not exist within WordPress either, at this time.
Currently, the best option for generating JSON output for WordPress is to use the WP-API project’s currently-released plugins. This is a project that will soon be inside WordPress Core itself, so it’s an excellent, stable, and open-source project to use.
You can learn more about the project and code at http://wp-api.org, and can find a plugin version of the WP-API here → https://wordpress.org/plugins/json-rest-api/
I hope this helps!
Cheers,
George