I think you dont know the rules . Upgradation scheme was launched way back in Jan 2006 . In february 2006 it was available in rajdhani and other express trains .See the attached pic to know better

One of my old tickets in my collection dated 11 - 07 - 2006This is a very lucky ticket for me as it was upgraded . This ticket was upgraded to AS 1 from S8 . At that time AC 3 tier was abbreviated as "AS". Also, Its a Blank Paper Ticket#NiketKaran

Pre Non-Interlocking and Non-Interlocking work at Barddhaman from 10/8/14-18/8/14 ...

Should be renamed as "Free Vegetable n Fruit Express" runs from SDAH daily like this ,No need to purchase ticket to/fro SDAH and no need to book luggage and all SL coaches are used to carry whatever unauthorized big bundles they can carry.Toilets, Vestibules or space under berths all are available to them,No TTE, GRP, RPf or any checking staff bothers to charge them. Reason is obvious.#See attached picture and imagine what kind of service these vendors give us in collaboration with IR.In return train these vendors travel in SL coaches again without ticket and are special guests for IR. ...

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