No, the headlight of the Bajaj Pulsar 200 NS does not always stay on. The Bajaj Pulsar 200 NS is equipped with an automatic headlight on (AHO) feature, which means that the headlight turns on automatically when the engine is started. This feature is designed to improve visibility and safety by ensuring that the motorcycle is always visible to other road users, even during daytime. However, the headlight can be manually switched off if desired, using the headlight switch on the handlebar.