If you carry copy of the original ID proof it will be treated as ticket less travel and you will be charged with fine by Railways.
The ticket will only be valid with ID proof in original. If found travelling without ID proof, passenger will be treated as without ticket and charges as per Railway rules.
Valid id’s to be presented during journey be one of the following: Voter id, Passport, Pan card, DL, Photo id card issued by Central/ state Govt. Student id card with photo by recognised school or college for their students, Unique Identification card or Aadhaar