The major difference between the tests currently mandated in India, and those in say Europe is the severity of the test.
The test in India is equivalent to the R12 regulation in Europe, which requires the car to be crashed into a solid wall at 48 kmph.
The current regulation in Europe is an offset test- R94 - (as compared to the full frontal in India) which required the car to be crashed with only 40% of the frontal width overlapping the barrier, which replicates the deformability of another vehicle. The speeds are higher, 56 kmph (upgraded to 64 for EURONCAP) and additionally, dummies are used in the test to register the injury criteria.
Also, Europe mandates side impact tests, which are not prevalent in India today.
India hopefully should move up to these regulations in 2012~13, subsequent to the availability of test facilities capable of these tests in India, which are being set up as part of NATRIP.