Its Viman Nagar. Perfect.
For cake SinCity is one of the best options there. Its in Viman nagar and they have an exotic variety of cake and bakery items.
We order from them for all our office celebrations. Though they dont give discounts and also charge extra Rs70 for delivery but its very much worth it.
Check the menu here. https://www.zomato.com/pune/sin-city-cakes-bakes-viman-nagar/info