today tracked from Etw to Maitha, 108 kms in 52 mins... for one or two stations it might be little mistake but for longer durations you will get the clear value.. for example if you will see a train crossing 8 kms in 4 mins, then it might be the work of seconds too which will mean that it will be near to 110, but for a longer period if the same gap continues then the MPS will be above