I will tell you all over Delhi Ambala Route.
64461 is 1HNK (Hazrat Nizamuddin New Delhi Kurukshetra MEMU)
64462 is 2HNK (Hazrat Nizamuddin New Delhi Kurukshetra MEMU)
64452 is 2KDM (Kurukshetra Delhi MEMU)
64454 is...
more... 4KDM (Kurukshetra Delhi MEMU)
64471 is 1PNG/1PGM (Panipat New Delhi Ghaziabad MEMU)
64472 is 2PNG/2PGM (Panipat New Delhi Ghaziabad MEMU)
64534 is 4PNG (Panipat Ghaziabad MEMU; Also known as Choti PNG as it is 12 Coaches and 64472 is 16 coaches)
64001/02 is 1EDP/2EDP (EMU Delhi Panipat)
64003/04 is 1SDS/2SDS (EMU Sonipat Delhi Sahibabad)
64531 is 1DPM (Delhi Panipat MEMU)
64533 is 3DPM (Delhi Panipat MEMU)
64451 is 5DPM (Delhi Panipat MEMU)
64453 is 7DPM/1KDM (Delhi Panipat MEMU, Also know as Kurukshetra Delhi MEMU, This is right now 64453-64481 Delhi Ambala MEMU)
64463 is 1NKM (New Delhi Kurukshetra MEMU)
64465 is 3NKM (New Delhi Kurukshetra MEMU)
64464 is 2PNM (Panipat New Delhi MEMU)
64466 is 4PNM (Panipat New Delhi MEMU)
64532/64536 is 2DUM (Delhi Ambala MEMU, Also known as 2DU)
64541 is 1PUM (Panipat Ambala MEMU)
64543 is 3PUM (Panipat Ambala MEMU)
64481 is 5PU/5PUM/1KDM (Panipat Ambala MEMU)
6 means EMU/MEMU, 4 means Delhi Suburbans , 4 means 16 coaches and 5 means 12 coaches , last two numbers means serial number.
after this remaining one is 54303 is 303 Kalka Passenger (Delhi Kalka Passenger)