हम उस देश के वासी हैं, जिस देश में Shiv Ganga दौड़ती है

As We will see Frequency Change in this 20504 Dibrugarh Rajdhani our ex 12236 Dibrugarh Rajdhani we will see some Speed Up also like
Current
From New Delhi (09:25) to Dibrugarh (05:15)
Travel Time: 43h 50m
24...
more...

halts
Distance: 2453 km
Avg Speed: 56 km/hr
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After Changes
From New Delhi (11:25) to Dibrugarh (05:30)
Time: 41h 35m
24 halts
Distance: 2453 km
Avg Speed: 59.32 km/hr
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Decrease in travel time by 2h 15 Mins
Only Increase of 3 Kmph
As per my Calculations