For More Detail, Plse Go Through FAQ Section, DB Sir had Explained in Detail
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Small Example of 12483 KCVL--ASR Exp, in which i had Observed.
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People Hardly Book CK From End to End...
more... Stations.
In This Train KCVL--PNVL Seats get Booked, and that Berth will be Carry Forward for PNVL Onward Stations. Hence, that berth will Shuffle with PNVL Quota and So on....
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If Some one Booked from ERS---BRC then that Berth will Carry Forward for BRC Quota.
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Consider, CK is Avbl 6 (At 10'o Clock) then Berth Multiplexing Takes Place.