Stand on a rooftop in Ballygunge or Salt Lake as the sky over the Hooghly turns orange, and you’ll understand why Kolkata homeowners are finally paying attention to their terraces. This city does sunsets slowly and generously — it’s honestly one of the few things Kolkata does better than most Indian cities. And yet most terraces here are still where the drying rack lives, or where old furniture goes to gather dust. That’s starting to shift.