12020 Down Ranchi - Howrah Shatabdi Express with its newly introduced LHB rake rips apart Mankar (132 Kms from Howrah via HB Chord) located on the quadruple section of Eastern Railway with HWH based WAP-7 # 30323 in charge on its return journey towards Howrah. Running ahead of it was MGS WAP-4 powered RDSO coaches that were possibly doing a testing to clear the tracks for speed's of 135-140 KMPH.