Burt Sir I seriously dont think any other halt will come up at least for this Rajdhani....all the Rajdhani's halt @ Kanpur,Allahabad & Mughal Sarai & so as this one...so there's no scope for any other halt.Also you need to remember that SDAH Rajdhani(same punctuality,same speed runs back to back HWH Raj) halts @ 2 places before Dhanbad,i.e. Durgapur & Asansol...so HWH Raj has to halt @ BWN for maintaining the synchrony