Hi Anushree, There are several amazing places you can explore near Kolkata. Some of them are Tajpur, Itachuna Rajbari, Raichak, Sundarbans, Chandipur, Shantiniketan, Bishnupur and many more. You can read more about places near Kolkata here: https://goo.gl/Z39pzo If you want more places to choose from you can checkout these places: https://www.tripoto.com/weekend-getaways/from-kolkata Keep exploring!
Kolkata is a dream city and perfect holiday destination. I would also like to suggest you can include the Odisha in your tour plan because this temple city will finish your holiday tour more memorable. During your visit you may like to stay at The HHI Bhubaneswar which is a best affordable hotel near airport and railway station.
Sundarbans : Home to the majestic Royal Bengal Tiger and a UNESCO World Heritage Site.
Shantiniketan : A cultural hub founded by Rabindranath Tagore, known for its arts and festivals.
Digha :A serene beach town perfect for a weekend getaway.
Mandarmani : A scenic coastal destination with beautiful sunsets. Planning a trip? Book your Tampa (TPA) to Kolkata (CCU) flights with Indian Eagle for the best deals! Visit:https://www.indianeagle.com/usa/flights/tpa-to-ccu/