SBC-DDR -> 1076 kms - 3AC fare - Rs. 958
DDR-JAM -> 817 kms - 3AC fare - Rs. 811
So total comes to Rs. 1769
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But if u book directly from SBC...
more... to JAM using break journey rules the 3AC fare would come down to Rs. 1400 approx
But this can only be done at PRS counters.
A simple example.
Taxis or buses have a minimum rate. If the distance travelled is short the amount per KM will be higher than if u travel long distances.