Though cannot comment about Tata
Active features include good handling, brakes, low noise level in interior, EBD, traction control (Some understandable being a budget car)
Passive safety features are the ones will help you when you hit something or are hit! Features like passenger safety cell, deformation zones and fuel pump kill switch. The biggest problem with TATA cars are horrible deformation zones or rather lack off!
When you hit something, parts of the body are supposed to get crushed to absorb impact. This does not happen in for example a Indica or a Safari. Being made of strong metal will only help in extremely minor hits, but with anything major that same strength can get you killed. Also not good for pedestrian safety.
About safety cell, a friend of mine was in a kinda serious frontal accident, the most serious damage was that the brake pedal somehow on impact when up and broke is ankle!
The above is mostly regarding older TATA cars. I am not sure how they have processed in recent 1-2 years.