Starting from Friday, September 9, 2016, surge pricing will be brought into effect when you purchase tickets for any of the Rajdhani, Shatabdi or Duronto trains.
The new surge pricing system is such that only the first 10% of the tickets will be sold at the base (existing) price. After that, prices will rise 10% for every 10% of tickets sold, resulting in passengers having to pay more as fewer seats are available.
There are total 42 Rajdhani trains, 46 Shatabdi and 54 Duronto trains in operation across the country. Thankfully, the Indian Railway Ministry has applied a ceiling limit or else the last 10% of the tickets will be sold at double the base price (and if you are going to buy a tatkal ticket, better opt for a air ticket).
For 2AC and Chair Car, surge pricing will go up to a maximum of 50% while for 3AC it will go upto 40%. Surge pricing has not been applied for 1AC and EC classes.
Under the prescribed norms, 10% of seats will be sold at current fares for a start while they will go on increasing by 10% per 10% of berths sold upto a maximum of 50% subject to demand. All vacant berths left after bookings are complete will be offered at current booking rates.
All other charges such as reservation charges, super-fast charges, catering and service tax will be at current rates. While the government has announced that there will be no changes in refund regulations, the new rule will not apply to tickets that have already been issued for journeys to be undertaking on or after 9th September 2016.