I guess this is due the petrol price hike, their star performer's like Alto and Wagon-r would have taken a hit.
Petrol prices were hiked a couple of days before, so it won't be the reason.
It might be coz of better competition to Maruti's hatchbacks, like Beat, Brio, Figo, i10, Eon and people who had to take loan to buy an Alto are happily buying Nano now.
Wagon-R, Alto and A-Star are also not equipped with diesel engines, that is also one factor.
As expected, Ertiga didn't dent Dzire's sales, it might have dented many Sedan's sales, like Verna, Rapid and Vento. Lets see the figures.
Ertiga sold close to 7000 in may, so that means it has already passed the sales numbers of Innova!
Again, despite of HUGE price diff. between its Petrol and Diesel models, most of the customers are buying Diesel models.
I hope Punto's and Linea's sales should have been increased this month.