For the convenient of the passengers, Railways have decided to augment two additional Sleeper Class Coaches permanently in 12663/12664 Howrah-Tiruchchirapalli-HowrahExpress w.e.f. 14th Feb’2012 from Tiruchchirapalli and w.e.f. 16thFeb’2012 from Howrah. Now, this train will run with 23 coaches instead of 21 coaches from the above mentioned dates.