New Delhi, May 30 -- Even in a world where sugar is the big villain in the struggle for good health, it's easy to make a case for ice cream. You could be at a table full of people who each have a different dietary preference just to drive the host mad-greens only, protein only, fruit only, eggs only, fish only, and everyone supposedly "off sugar"-but they will all sneak a spoonful if a dish of ice cream arrives. And so, this week, when the heat had made all of us feel somewhat lethargic, we decided to treat ourselves to ice cream. We've picked our favourite ice creams from across the country-some of them are regional specialities, some old favourites, a few strangely inventive but all of them satisfying, cooling and delicious. For those w...