Just look at the history of this train...
Started as just link express between HYB KOP in early times with Haripriya express...
Got de-linked and was just bi-weekly express between KOP HYB ...
more...
Then came special between KOP HYB for remaining 2 days, I believe
Then was made daily train between KOP HYB
Got extended to Manuguru
Now, short terminated at BGM.
Basically this serves North and North East Karnataka region with Hyderabad and also Intra state. People of BGM and around take it for Koppal, Hospet and Ballari, Mantralayam.