Chevrolet Optra Royale 1.6 VGIS. I think it fits your bill best. Costs little less than 10 lakhs on the road, but you can push for big discounts from GM. Alternatively the base version (Optra Elite) costs little less than 8.
Big, comfortable and good looking. Brilliant interiors. Loads of goodies to keep the wife and kids happy (sunroof, double din MP3 player, climate control etc). Good engine, enough to keep you happy if you prefer cruising to boyracing. The car is stable and solid at high speeds, and is great for highway driving.
20kms a day isn't much. You're much better of with a petrol. If you were doing 60-70 kms then it would be a different matter.
Go check it out and see if you like it. Chevy Optra is available in the US as Suzuki Forenza, so maybe you could check it out in Louisville itself.
Alternatively there's the Honda City Vtec, but I'll let Goldie sell you that one!
Cheers