12664 Tiruchirapalli - Howrah Superfast Express arrives at pf 1 of Bhubaneswar behind a bumper offlink CNB WAG 7( Conventional style ) The train runs fully packed for the whole year almost... During announcement of it's arrival.. 12504 Kamakhya ( now Agartala ) - Bengaluru Cantt Humsafar Express just enters pf 4 , without anybody's attention as they were busy announcing 12664..as they realized , they stopped the announcement for 12664 , and started for 12504. Notice the EOG sound.. Enjoy the recording..