CHENNAI: The Chennai-Mysuru Intercity Express will be downgraded from a superfast to an ordinary express starting January 3, following a decision by the South W. The change comes after a steady increase in stoppages over the years, which has impacted the train’s average speed.The downgrade aligns with a broader railway initiative to reclassify trains that fail to maintain a minimum average speed of 55 kmph, the benchmark for superfast categorisation.