Mumbai: Metro Line 9, whose first phase is set to open shortly, will begin operations without platform screen doors (PSDs), making it the first Metro corridor since the launch of Metro Line 1 in 2014 to do so. All metro corridors commissioned after Line 1—including Metro Lines 2A and 7 (Andheri–Gundavali) and the underground Metro Line 3 (Aarey–Cuffe Parade)—are equipped with PSDs.The...