There was another article which summarised the same.
• To accommodate more passengers, railways plans to run standardised trains with 22 coaches
• Depending on the demand, railways at present runs trains having 12,16,18,22 and 26 coaches
• Plan is to initially have 300 trains of similar make on busiest routes
• This...
more... will help railways to substitute one train with another in case of delays
• It will need standardisation of infrastructure