Difference between TATA Movus and Sumo Grande ?

Friends, TATA movus is the name of the new car which was launched last month as entry level MUV by TATA. But if you see picture of Movus then it is rebranded TATA Sumo Grande. Are there any differences between two or just the name has been changed and it is all same ?

I checked most of the things like dimension, those are same, engine, again same, power .. again same. If both are same then why TATA launched same vehicle again with new name ?

Am I missing something ?