LEFT-WING EXTREMISM

• Left-Wing Extremism (LWE), popularly called Naxalism/Maoism, is an armed insurgency by CPI (Maoist) and affiliates aimed at overthrowing the State through a "protracted people's war"; concentrated in the tribal-forest belt of central-eastern India ("Red Corridor").
• Under the Seventh Schedule, Police and Public Order are State subjects; the Centre only supplements State efforts via the MHA's LWE Division.
• High UPSC salience — straddles GS-III (internal security), GS-II (federalism, tribal rights) and GS-I (regional movements).