Mark Nicholls Suggests What to do and where to go when you spend 48 hours in Kolkata, the City of Joy. If you wander down to the Hooghly River in Kolkata soon after sunrise, in the cooler air beneath the mighty Howrah Bridge, you’ll be met by floral blooms of every shade. Yellow and orange marigolds dominate, but there’ll be stalls selling roses, carnations, chrysanthemum and gladioli, plus green foliage to complement the bunches.