Shops stayed locked, markets fell quiet, and streets in several Punjab towns turned into protest processions on Thursday as a state-wide bandh, called by sanitation workers, took hold, a PTI report stated. The trigger goes back eight days, to a lathi-charge in Barnala that has since snowballed into one of the biggest labour flashpoints Punjab has seen in months. Here's the full picture: what's closed, what's still running, and the chain of events that led to today's shutdown.