अपनी संपूर्ण क्रांति, राजधानी से कम है के 🔥- Arjun Rai

WAP-5 wont b allowed in Madras - Bangalore section due to tough gradients n less speed zone.
Only MU WAP-5 will b allowed as both are equal to twin WDM-2's hauling 24 coaches in gradients.
Single WAP-5 will whine with a lengthy rake.
The Pull/Tractive Effort of a WAP-5 is quite low than any locomotive n is designed only to cater less coaches...
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at higher speed.
Max number coaches, and a ghat section, it'll struggle hard.
SR has restricted it quite long time back.
That's why Board has given WAP-7 to Royapuram to cater the necessary trains.
WAP-7's speed can b increased, just needs to change the software n the Driver data inside the processor.
Then hauling a 21-22 coach at high speed, isn't a big deal to WAP-7.