Vaishali Express - जितना सुंदर तुम्हारा नाम उतनी सुंदर तुम्हारी चाल - be my valentine - Rahul Vatsa

These are small explosive charges used to warn trains about track damage/restrictions ahead. If the gangmen observe any problems up ahead, they place these charges on the track. When the train passes over the charge, it explodes and the loco pilot understands that it's a warning.

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Detonator. :)

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Sometimes can be used by someone to misguide loco pilot...

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these Detonator are only given to guard, driver, trackman, master

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How

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