Our go-to place for any Korean food, Kings Bakery has a great blend of cold coffees too (the owner is a trained barista after all). Their Korean Iced Coffee (INR 150) is a must try. With sugar and milk, it is not very strong and something that everyone will enjoy.
Their caramel macchiato is hard to miss, sip on it with bites from their doughnuts from the complete experience. If something stronger is what you are looking for, go ahead and try their cold brew without milk and sugar.