Ghoshal completed her schooling up to eighth grade at the Atomic Energy Central School No.4 in Rawatbhata. In 1995, she won the All India Light Vocal Music Competition, New Delhi, organised by Sangam Kala Group, in Light Vocal group in sub-junior level. In 1997, when her father was transferred to the Bhabha Atomic Research Centre, she was relocated to Mumbai, with her family and studied at the Atomic Energy Central School in Anushakti Nagar. She joined the Atomic Energy Junior College to study science. She dropped out from the junior college and enrolled at the SIES College of Arts, Science, and Commerce in Mumbai, where she took up arts with English as her major.