Oldest record found dated 28 June 1939 (must be older than this date)
Started as mixed train, via Haldaur & later diverted via MB before name change. Mussurie Exp run via SRE/MTC before getting to initial route via Haldaur/Chandpur Siau!!
1984 TT display two trains from Delhi, one been Bombay Janta & other Mussoorie!!