RED because:
1. POY-DG-SA means one LR. Again entering SBC for another LR. 24-25 hours not possible due to loco change, single track, etc. Will become 32 hours.
2. If you so wish via SA-KJM, why not from POY-CBE-SA? 65 Kms less and no LR.
3. Between DG-Pune via KJM you have 4 days/ week train and via RU 2 days / week...
more... train.
4. Can run from DG to Pune via POY-PGT-SRR-MAJN-PNVL-KJT-PUNE. Unconventional route, but faster. can cover DG-PGT in 3-1/2 to 4 hours + LR + PGT-MAJN 6-1/2 hours + MAJN-PUNE 16 hours = 26 hours flat.
5. Try POY-DG-TPJ-VM-KPD-TPTY-GTL-SUR route which will connect TPJ - PUNE properly. Though MDU/ DG/TEN have more trains to Mumbai/ Pune, TPJ is a neglected. Hardly 3 trains per week.