His statement is half wrong, half true. I can give you more information.
NCAP refers to New Car Assessment Program. Different countries / regions have their own NCAP program, e.g. China NCAP, Euro NACP, Japan NCAP, Australia NCAP etc. India has its own NCAP program too, but it is called as Global NCAP.
Different NCAPs have different test protocols or standards. Hence test result from different NCAPs are usually NOT directly comparable. I.e. five-star rating from one NCAP, vs. five-star rating from another NCAP, may have very big difference.
For the China NCAP, it consists of the following tests:
- Frontal impact test with 100% overlap
- Frontal impact test with 40% overlapping
- Side impact test
- Neck protection test, or commonly known as "whiplash test"
- Pedestrian protection test
- ESC (Electronic Stability Control) performance test
- AEB (Autonomous Emergency Braking) performance test
- If the tested car is an electric vehicle, there is separate program to test its electric-drive system
All the vehicles tested by China-NCAP needs to do ALL the mentioned tests, and the safety rating (i.e. how many stars earned) is an aggregate result based upon all the tests done.
For example, the given link shows the test result of BYD Tang Electric SUV. We can not only see the final result, but also the result of each of the separate tests.
http://www.c-ncap.org/cncap/crash/1c85ddb987264d1b899c9cf40634dee2
This is the situation of China-NCAP. Then how about India NCAP (or Global NCAP, as the program call itself as Global NCAP). Global NCAP unfortunately conducts ONLY ONE test, the front offset test. And the safety rating is derived from this one single test.
For example, the following link shows the rating result of the Tata model. We can only see the front impact offset test results.
http://www.globalncap.org/wp-content/uploads/2018/12/SaferCarsForIndia-Tata-Nexon.pdf
Now we see the difference. The China Five star rating is derived from multiple different tests that targeting at the different sides of the cars, while the India NCAP only does one. Which one is a better safety indicator??