As mentioned above, Bayana Dholpur Gwalior Jhansi can be a useful route. From Jhansi, trains can go straight to Kanpur or allahabad. In near future, via Lalitpur Khajuraho Rewa Singrauli track, Howrah access would be possible. Jhansi Shivpuri Baran track seems much more useful, but needs a lot of time