I think that Varuna Exp can get a CNB WAP-4 which will take the train from Varanasi to Kanpur via Sultanpur - Lucknow - Unnao Route. The Varanasi - Jammu Begumpara Exp can be hauled by a LDH/MGS WAP-4. If Varanasi - Chandigarh Exp is introduced then it can get a GZB WAP-4. Marudhar Exp may get a GZB WAP-5 :-)