I still can't understand why Tata launched the Curvv instead of an extended Nexon

Tata could've easily gone for an extended wheelbase version of Nexon just like Bolero Neo plus, made it 'NexonEV' and easily would've been the best EV seller in India for long time. Since no length based tax regulations apply to EVs, this model could've been a game changer for them as it could accomodate a larger kWh battery pack and provide more space for both passengers and luggage. Now I know that architecture of both cars are different but no way Tata can't re engineer this platform to make newer cars...