Which is better 2AC and 3AC?

The 3AC is 3tier, 2AC is 2tier berths and 1ac is having more privacy and the attendant will make bed for you. AC is same , the only difference is seat/berth numbers. 1 AC - 1 seat/berth ( lower berth) , 2 AC - 2 seat - Bunker bed type - lower and upper berth, 3rd AC - sleeper berth ( lower, middle, upper).



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AC 2 has 2 layers ( floors ) of seat ( beds ) and AC 3 has 3 layers ( floors) of seats ( beds ), AC 2 is better than AC 3 if you need more privacy otherwise both are fine . AC 2 cost more than AC 3 if compared cost wise.

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Upgradation of passengers is done to one class above only e.g. from sleeper to 3AC, 3AC to 2AC and 2AC to 1AC, said IRCTC. 4. The original PNR of upgraded passengers remains unchanged and all information from PRS is provided when an enquiry is made with the original PNR. 5.

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In my opinion in AC 3 Tier always try to book the side berths - upper(SU) or lower(SL). Its a squeeze on the other berths during the day time, with three people sharing space which is comfortably meant for two.

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AC3 (or A-3) – Same facilities as AC2 class, the only difference is they are busier because they have more beds – 3 tier bunk beds (upper, middle and lower) are grouped in bays of 6 beds plus 3 bunk beds along the corridors. Unlike AC2 there are no privacy curtains.

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1Ac is a seperate coupe with closed doors having furnished accommodation for two persons. 2Ac and 3Ac coaches are Air-conditioned sleeper coaches having berths arranged serially with the difference that in 2Ac berths are under 2 tiers (lower, upper) and in 3Ac under 3 tiers (lower, middle, upper).

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AC three tier: Air-conditioned coaches with 64 sleeping berths. Berths are similar to 2A, but with three tiers across the width and two lengthwise for eight bays of eight. They are slightly less well-appointed, usually with no reading lights or curtains.

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Railways had installed curtains in air-conditioned coaches in 2009 to give more privacy to passengers, but stopped using it in the AC-3 tier coaches after a fire accident on the Bangalore-Nanded Express in 2014.

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