Invisible Heroes: The Spies Who Protected India

India’s intelligence agencies and covert operatives have waged silent battles to protect national security. Bharat Bioscope highlights Saraswathi Rajamani, regarded as India’s first woman spy; the secrecy surrounding Pokhran-II; and Ravindra Kaushik, known as the Black Tiger, while honouring agents whose missions and sacrifices largely remained outside public headlines.