Working Principle of Emergency Door

This is 3D Animation video, We have described the working principle of Emergency Door or Detrainment door. All content and visuals have been thoroughly approved by Metro Rail officials at all levels.
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[@ShubhamMathur14]

Very well explained.. I would like to request that you correct one typo in your description. It's called a "Detrainment Door," not a "Contentment Door."