Since her first acclaimed release, described by The Times Of India as "a most exciting find", Isheeta has performed Rabindrasangeet widely both in Kolkata and the U.S. where she performed regularly at the annual North American Bengali Conferences as well as several international music festivals in New York City. Additionally, Isheeta recorded four more highly anticipated albums in Rabindrasangeet, two of which were collaborations with her guru Smt. Suchitra Mitra, in a series titled, "Aj Khala Bhangar Khala".
  
Simultaneous to her journey with Rabindrasangeet, Isheeta was inspired in Western opera and jazz through her training with Nancy Wilson from the Lincoln Center in New York City. Subsequently, during her college years at Brown University, she performed with a pop a'cappella group called the Chattertocks a group with regaled audiences all over the U.S. with jazz and pop favorites.
  
Her proficiency in both Rabindrasangeet and Western styles of singing led to collaborations a number of international projects including: a multi-media work called "Riot" with Shabana Azmi, Madhur Jaffrey and Shashi Tharoor in New York City, the inaugural performances of four Indo-American Arts Council Film Festivals with Mira Nair, Deepa Mehta and the late Ismael Merchant, a multi-media collaboration with danseuse Mallika Sarabhai and The Battery Dance Company titled, "Still I Rise" as well as a collaboration with Tanushree Shankar's Tagore based production titled "Chiranthan".