Let me quote this directly from their article:
So much about my imagination. Read it in "The Week" from 12th October of 1997. It was their cover story.
If you prefer the words from DRDO about their own product more than a critical view from journalists, then this is your own personal thing.
Early trials (pre-1997) showed that Kanchan alone (the version used at this time) did not provide sufficient protection against kinetic energy. DRDO answered by claiming that an appropriate amount of steel armour is used (in the Kanchan version available in 1997). Hence it was added after the earlier tirals.The DRDO has been claiming to have used Kanchan armour in appropriate combination with monolithic armour for enhanced immunity.
...
The earlier trials showed Kanchan was very effective against high-explosive attack but not against high-velocity armour-piercing fin-stabilised darts.
So much about my imagination. Read it in "The Week" from 12th October of 1997. It was their cover story.
If you prefer the words from DRDO about their own product more than a critical view from journalists, then this is your own personal thing.