If you’re travelling on a tight budget then check into north Kolkata’s O2. Not an offshoot of any chain hotels, O2 is a city brand which will take care of your comfort and your pennies. Expect no plush décor or high aesthetic indoors because budget is the key word here. With forty-one rooms, a multicuisine restro and a mish-mash of a pub, this one will keep you comfortable till your flight out, all within a budget of INR 5K.