If it was short terminated it would have halted. passengers would have been told to vacate this train as it is heading to yard. It skipped Dadar, so this is not short termination
This was route diverted. It came from Vasai - Diva - Mumbai Cst. It halted at Thane also. Since there were back to back trains, the railway authorities must have told the crew to skip station and at the previous station perhaps Thane where it must have halted the passengers must have been intimated too. I had just seen the train skipping station. Thats I why I was puzzled. Dont know what could be the ground reality behind this.