Features:
Native OTA Updates:
BharOS would offer Native Over the Air (NOTA) updates, meaning that security updates or patches and bug fixes will be automatically installed rather than users having to check manually for the updates and implementing them.
No Default Apps:
No Default Apps (NDA) setting, means that users do not have to keep or use pre-installed apps in this mobile operating system and Bloatware are there. No Bloatware apps means no background app activities that led to fast draining battery and security issues. Going with an NDA setting means that the BharOS was intentionally designed to let users have more and clear control over the apps on their mobile phones based on the user’s trust based on users interests. 
App Store 
In a regular Google powered smartphone you can download any apps from the Google Play Store by default and it is pre-installed. But in BharOS it will use a Private App Store Services (PASS), which will examine and filter the apps that are safe for the users. Users will be able to use other apps, as long as they meet BharOS’ PASS standards.
User Privacy
Yes, If we talk about privacy then why do we compromise with our precious data. As you know that all our Browsing history, Contacts, Locations, Photos, Important Data and even Banking information like Credit card, Debit card details are stored on google and also not fully private. But in Case of BharOS your data and other important files are fully secured and private as per its features. The BharOS comes with privacy and data security. 
Significance:
The project aims to reduce the dependence on Google Android OS in smartphones and promote the use of locally developed technology. It is a huge step forward to use Make in India products. This innovation makes India independent on foreign OS.