Its called the Integrated motor assist... The technology honda uses in hybrids.
I have driven this car a few times and its acceleration is pretty much less as compared to the local R18.
And @poster bro, are yu sure it gives u 14-17 KPL? U might consider getting it checked somewhere as A hybrid even if floored too much does not give under 24KPL...
But this is just my little experience and limited knowledge. Please do elaborate clearly on the mileage u're getting. Also, mention the engine oil u use in it.