click here The real 10 Mail: Mettupalayam DN 10 Mail (MAS 18:40, MTP 8:10) in 1920!! 1918 TT already shown by you with 10 Mail as through train to MTP which you deliberately named Mangalore Mail while slip from 10 Mettupalayam Mail use to connect 12 Podanur-Mangalore Mail (which was discontinued in 1880 as Podanur Beypore Mail until Calicut was connected in 1888)!!
That Slip from 10 Mail was fondly called Mangalore Mail by Natives, but what it become in later years as thru service...To be continued..