Amma’s Pastries is the one to go to for standard cakes you cannot go wrong with. They have a fully-functioning website on which you can order a single slice of cake, half kg or one kg. If you’re ordering online, they take at least 24 hours to deliver, so you may have to choose another option or step out to any one of the 27 outlets (that’s right, 27!) that are there in the city.
Order here.