Kousic was born in a musical family in Calcutta (now Kolkata), India. From before his birth, he was exposed to Indian music. His mother, Smt Tapati Sen, was a prominent North Indian Classical Vocalist and an A Grade artist of All India Radio. He started playing Tabla, very informally, with his father, Late Mr P. L. Sen and later on continued his training under the guidance of an expert of Farrukabad Gharana. Late Pdt. Manik Pal. At a very young age, he showed tremendous progress and was guided by his parents to adopt the immensity of Benaras Gharana from the great Guru, Prof. Biswanath Bose, a prominent disciple of Pdt Kanthe Maharajah, of Banaras Gharana. After a sudden and unexpected death of his guru, he continued his training under the watchful eye of Great Tabla Maestro, Pandit Kumar Bose, who's art of playing inspired him and continues to do so till this day. It is not out of place to mention that Kousic is the first "Gandha Bandhan Shagrid" (formal ceremony to become a disciple) of Pandit Kumar Bose. Kousic was also galvanized by another gifted person of his teachers’ family, Pdt. Jayanta Bose whose guidance helped him to not only understand but also to meander into the global music scene. As a graded artist Kousic is attached to All India Radio and National Television from a very tender age. Throughout his studentship Kousic achieved top places in different all India based competitions, by which he came to be blessed and loved by numerous legendary musicians, audiences and critics across various international communities.

After his graduation in Accountancy, he determined to go through with music as a profession. Kousic has performed alongside various notable musicians and groups across the planet since 1988. His experiences of working with Cuban musicians, Indonesian musicians, Persian musicians, Flamenco dancers, Philharmonic Orchestra, Tap dancers, etc. has contributed a lot in his musicianship and given him a unique identity. In the recent few years, he has chosen to settle down in the cultural hub of Liverpool, UK, with his family. Although he still performs regularly. he has chosen to spend a majority of his time enlightening the next generation of musicians and performers.