ट्रेनों का सफर, ज़िन्दगी का सफर, रेलफैन दोनों में माहिर

Many routes are just 'capable' of upgrading to 130 kmph in South India
1. MAS - Gudur (Trials were already conducted)
2. Gudur - BZA
3. BZA - BPQ
4. SC - KZJ
5....
more...

MAS - SBC (Trials conducted till JTJ. JTJ SBC is under upgradation to 130 kmph)
6. JTJ - SRR - MAQ
7. MS - TPJ
8. SBC - DMM - GTL
9. GTL - Wadi
10. SBC - UBL
11. BZA - VSKP (Some say due to soil quality 130 kmph might not be possible)
There are my assumptions based on the present geographical conditions)