If there are dedicated hourly trains, people can take such services.
While I agree that south (Jayanagar JP Nagar BTM etc) may not like to go via BNC, Koramangala /Sarjapur road/ HSR can travel to BNC if direct buses are there. Now not even a single bus is there from these areas to Cantonment station. Similarly, west (Rajaji nagar/ Vijaya nagar/ Kengeri) like to go via SBC instead of via BNC.
Malleshwaram, Yeshwantpura, Sadashiv nagar people will not come to BNC.
What...
more... is the point of running few services from BNC? Just to say that we have done our part and now it is upto public to utilise them or not?