The movie is said to be a modern take on Ramayana where Seeta is saved by Raavan's brother Vibhishan, and not by Ram. Anju narrates her story of being restrained to live as an unwed wife of a powerful gangster and her struggle to seek freedom.
"Lanka" is a touching journey of a person who is torn between the faithfulness for his guide and the understanding he feels for a girl; a trip of a modern-day 'Asur' (Devil) who had chosen to be a man; a trip of a man who would be named as a conspirator by some and a virtuous by others.