<h1>Activist detained after deadly protests; special security powers extended; key rulings on corporate plan, green fireworks, bail, evidence preservation</h1> Police detained a climate activist after protests over regional statehood demands that left four dead and about 90 injured; opposition parties condemned the arrest as political targeting. Authorities extended special security powers in parts of three northeastern states. Courts issued multiple notable rulings: the Supreme Court upheld a major corporate resolution plan, conditionally allowed manufacture of certified 'green' fireworks with sale restrictions, relaxed bail conditions for a legislator in a gang-related case, directed preservation of a deceased alleged insurgent leader's body amid fake-encounter allegations, and questioned a state on CCTV coverage in police stations; a high court stayed removal of social media content in a defamation-related order.