In the lost Archipelago of Kumarikandam, ruled queen Devi when an alien invasion sets forth on the Earth. Driven by ambition and motivated by science, their leader Naqta brings to life a half beast-half alien Mahishasura who has now taken over Kumarikandam. As the premonitions of Aggatiar, the sage comes to life, Devi is now faced with an intergalactic war with Mahishasura and his army to save her kingdom. Set 70,000 years ago, Mahishasura is an ultimate ode to the supreme energy mentioned in the Devi Purana. An exploration of the feminine form of parashakti, in the world of Anand Neelakandan, science, technology and AI clashes with the long-lost tales from the puranas retelling Indian mythology for the modern readers.