There are quite a few safety features that this car has. These features are:
Dual Airbags
Front Seat Belts with Pretensioner and force limiter.
Suzuki Total Effect Control Technology (TECT).
Anti Lock Braking System with Electronic Brakeforce Distribution System.
For children, it has child seat restraints in the form of ISOFIX. ISOFIX are attachment points to easily secure child safety seats in cars. These are standard attachment points as per international standards that must be fixed in cars for children's safety.
As for the results of the crash test, there is another post on this forum that discusses it at length. You can follow this link for it
Maruti Suzuki Vitara Brezza Crash test