Now it is your turn.
This train took 14 Hours from Anand Vihar to Allahabad and Sangam Express took more then 16 hours from Meerut to Allahabad.
Distance is almost same then why AC of Sangam Express did not failed? Sangam is just a example, there are many trains which runs less then 30kmph speed and halted so long but why those trains does not face AC failure.