how was the station code decided in Indian railway

Why was need to create a station code for a railway station?

Saharanpur Railway Station, Code SRE।सहारनपुर रेलवे स्टेशन। Indian Railway ।North Railway Saharanpur

LKO/Lucknow NR Charbagh Railway Station : Facilities, Trains Passing Through, Station Code, Hotels

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how were the station code decided on indian railway

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Erode Junction railway station(ED) : Trains Timetable, Station Code, Facilities, Parking,ATM,Hotels

Haveri Railway Station (HVR) : Trains Timetable, Station Code, Facilities, Parking, ATM, Hotels

Dimapur Railway Station/DMV : Trains Timetable, Station Code, Facilities, Parking, ATM, Hotel Neaby,

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Amgaon Railway Station | Code, Facts, Arrival, Nearby Hotel, Contact Number & Facilities

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Bangarapet Junction railway station(BWT): Trains Timetable, Station Code, Facilities, Parking,ATM

Gwalior Junction Railway Station 04318 Dehradun - Indore Special Train Arriving Platform Number 04 .

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Raichur railway station (RC) : Trains Timetable, Station Code, Facilities, Parking,ATM,Hotel Neaby,

Yadgir railway station (YG): Trains Timetable, Station Code, Facilities, Parking,ATM,Hotel Neaby

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