Competition my friend.
In case of Suzuki and Toyota similar price range of different models are competing with each other too.
Wagonr VXL and Cultus VXR were priced with a difference of rs. 50,000
(Missing alloy wheel and matching door handles offering 4 power windows).
Alto offering AGS for the price of a basic WagonR
Yasir top of the line touching near about of Corolla 1.6 variant.