NEW DELHI: India’s drug regulator flagged 159 drug samples as not of standard quality (NSQ) during routine surveillance in May, while identifying one spurious drug sample in Assam, according to the latest monthly alert issued by Central Drugs Standard Control Organisation (CDSCO). Of the total, 46 samples were declared NSQ by central drug labs and 113 by state drug labs. Drugs are listed as NSQ when they fail prescribed quality parameters. CDSCO clarified that the findings relate only to specific batches and do not imply that other batches of the same products are substandard. TNN