What can you expect from a country operating under regulations that were written when Pilots Heads hung outside of the plane, landed on dirt and had no radios.
They are operating in the same system that the British taught them in WW1 and WW2. The local experts and teachers do not know all the answers on the DGCA Written Test, they are as confused as you.
Example from memory:
You can not take a picture in or around an airport or from a plane in an airport.
next paragrah:
You can take a picture in or around an airport or from a plane in an airport, as long as it is not with a camera aparatus.
So you can take all the pictures you want, just do not use a camera!!
When you visit the tower, wich you or your handler must to depart an airport with a tower on it, you will see a time capsule from WW2. Same desk, same giant porcelan phone, no computers, no fax machines.
There is only 2 radar coverage areas; Delhi and Mumbai, position reporting for everwhere else. The ATC that you are talking to is moving little wooden planes around on a wooden table (vintage WW2).
TCAS is a must and is part of the Primary scan even in radar contact.