This is not something unique. There are many such examples available over IR. Some more examples:
17235/36 SMVB - NJC Express( RSA with 17209/10 Seshadri Express) doesn't pass through SCR. 10215/16 MAO - ERS Express( RSA with 12449/50 Goa Sampark Kranti Express) doesn't pass through NR.
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