Friend, Barkakana is pretty well know in those areas because of Ramgarh. There are many people from Ranchi who come to BRKA by there own vehicle from RNC bcos it takes much more time for the train to travel from RNC-BRKA. Tori is also a well known place because of huge mineral availability in that area along with patratu. But, these are very small stations for naming a train. If via has to change you can have better options line Barwadih, Daltonganj OR Garhwa Road. However, in my personal opinion it VIA Chopan/Chunar would be far more better