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Most common, affordable travel for millions Examples: Howrah–Bardhaman, Chennai–Tiruvallur, Mumbai–Pune
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Faster than passenger trains with limited stops Examples: Kerala Express, Gorakhdham Express, Himsagar Express
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Long-distance backbone with higher speeds Examples: Howrah Mail, Tamil Nadu Express, Rajdhani-class Superfast trains
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Modern non-AC express trains Affordable, upgraded travel
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Premium intercity services Meals included
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Semi-high-speed Made in India Chair car & sleeper variants
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Overnight premium travel AC sleeper coaches Modern safety systems
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Palace on wheels Heritage journeys for tourists
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City lifelines Millions commute daily
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Carry coal, goods, fuel Also run as special festival trains
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