Dhruva Natchathiram (transl. Pole star), also marketed with the subtitle Chapter One – Yuddha Kaandam (transl. War Chapter), is an unreleased Indian Tamil-language spy action thriller film directed and produced by Gautham Vasudev Menon. The film stars Vikram, alongside an ensemble cast consisting of Ritu Varma, R. Parthiban, Radhika Sarathkumar, Simran and Vinayakan. Set in the same universe as Menon's Joshua: Imai Pol Kaakha (2024), a covert operative leads a team of elite professionals named "The Basement", with the intentions of taking down terrorist organisations secretly without being bound by law and order.

The film was initially announced with Suriya in 2013, but several months after the announcement, Menon shelved the project citing creative differences with the actor. He revived the project in 2015 and finalised Vikram as the lead actor. The film began production in 2017 and was shot in seven countries, but languished in production hell for years owing to Menon's financial constraints and the COVID-19 pandemic, before concluding in February 2023. Due to lingering financial and legal issues, the film remains unreleased. The film has music composed by Harris Jayaraj, cinematography handled by Manoj Paramahamsa, S. R. Kathir and Vishnu Dev and editing by Anthony.