Get your required information at your handsets by using RevEye.
Just add the revapp (reveye.in) in your handsets and scan on the image of "ertiga vdi disel car" and tap it on the image then you able to get the information. Of course, the app is absolutely free.
Maruti has announced offers on Wagon R, Alto 800 and K10, but there are no announcements about offers on Ertiga. But, you can expect to get some offers later in the month. For exclusive offers, please visit your nearest Maruti dealer to find out the details.