A number of restaurants in Kolkata that serve authentic Bengali cuisine. Some that are worth mentioning are '6 Ballygunge Place' and 'Koshe Kosha'. At '6 Ballygunge Place' do try their signature dish 'daab chingri' (prawn in mustard and coconut gravy cooked and served in a tender green coconut shell). If you prefer meat to fish, then I suggest you go for the delicious 'kosha mangsho' (traditional dark mutton gravy) or 'goshoraj mansho' (juicy pieces of mutton cooked and served in flavourful kaffir lime gravy) at Koshe Kosha. Both the restaurants have multiple branches across the city, so swing by the ones that are closest to your accommodation.

Indulge in the enticing Sunday brunch at 'Seasonal Tastes'. For a more relaxing evening, take a window-side seat or climb to the second level to enjoy the panoramic views of the city from the bar '31 32' (this is a bar that occupies floors 31 and 32 and hence the name). End your day with authentic Asian cuisine at Nori. 

Sunderbans might give you a glimpse into the wildlife of Bengal, but 'Padmaja Naidu Himalayan Zoological Park' will impress you to your core. Visit this largest high-altitude zoo in the country and watch the amazing weather and life that the animals enjoy here.