Drawing from observations of his native village in the Andaman Islands and their current place of residence, Viswanath is deeply fascinated by the natural and human-made elements that populate these environments. He employs many subjects, motifs and symbols from there including goats, landscapes, flora and fauna, bamboo, rituals and folk traditions. He also tends to dwell on the rhythms of spaces around him as well as the ironies in the contemporary urban politics responding through philosophical and satirical undertones that often results in surrealistic imagery.

Years of sustained experimentation have allowed him to create his own medium from Paraffin, beeswax, oil, and natural pigments. His process demands absolute precision, requiring a singular act of drawing, rendering it intricate and meditative, almost performative. It echoes the fragile nature and the endangered condition of the marginalised geographies he engages with.

Viswanath correlates objects such as costumes and props in a ceremonial performance as carriers of knowledge systems and generational memory. His work seeks to archive vanishing traditions, interrogating displacement and loss of natural habitat, aiming to preserve intangible histories.