I feel it has already started in icici...
for eg.
For Reliance, it is 16.7 + 5.00 = 21.70%
But for ICICI, it is 31.81 + 6.19 = 38.00%
VAR is directly in proportion to the recent historical volatility of the scrip.
Extreme loss rate is less for Nifty 50 stocks in comparison to Nifty Junior stocks, and even lesser than Nifty 100 stocks
SEBI has increased the latter part Extreme Loss rate from average 5% to 10%