Instead of having different fares for the same train on the same day, they should have different single fare for the same train on different days. Base fares should be increased upfront for all passengers for high demand dates - e.g. festivals, long holidays, events etc. e.g.
(1) Bangalore Chennai AC3T fare is 650. For Friday evening trains, this fare can go upto 800 for all passengers even if booked 4 months in advance, for Sunday evening trains, this can be 720.
(2) Ganapati season fares should be...
more...

bumped up right for all trains to Konkan. (Even bus fares increase from Rs 800 off season to Rs 2500 for Ganapati)
(3) Sunday morning Pune Mumbai trains should cost less than regular fares.
Railways has a lot of data on demand. So they should be able to design the fares and earn revenue.

"lalach buri balay" or "greed is root cause of evils"- fits well in this case.
* Based on the tremendous response and very high rates at which some tickets were sold for the premium Rajdhani special introduced between Mumbai & Delhi during peaks season, IR decided to introduce it nationwide as Premium tatkal, then Suvidha, Special fare and Flexifare!
* Mumbai-Delhi is the sixth busiest air route in the world with a traffic is about 20000 paxs per day! Hence route connecting Mumbai (Financial capital) & Delhi (political capital) is special and...
more...

its traffic potential cannot be taken as traffic potential of all routes of IR. IR forgot to take cognizance of this basic fact.
* IR is already charging more for about 30% berths under Tatkaal scheme for last minute passengers, logically flexi fare scheme is unwarranted. Had they gone for flexifare, it should not have been so harsh. putting 90% seats in flexifare is a mockery of normal fares. Atleast 50% of seats should have been sold at normal fare and max. surcharge should be 20-25% and not 50%
* IR, a govt organisation which carry "poor" at 25% of costing want to charge 150%-400% from "middle class" under the name of flexifares and Suvidha/PT is too much. India have very high taxation for a very small % of public, and IR is also trying to follow the same path. It may be noted that even a rich country like France subsidise the TGV HST passengers. Not satisfied with decent profit fron ac classes (in spite of inefficient working), IR want to profiteer from middle class people, most of whom are already severely taxed by Govt.