To be specific the confirmed ticket seat will not change. After charting also it will remain same, but at the time of charting, they will try to provide the same seat at same cabin or atleast at same coach, because it is the 1st RAC and atleast that much of vacancy can be available.
please wait...Translate to HindiTicket confirm hai toh seat confirm hai yaar. Chart banne ke baad bhi wahi seat rahegi, lekin charting ke time pe wahi seat wahi cabin ya kam se kam wahi coach try karenge provide karne ki, kyunki yeh pehli RAC hai aur kam se kam itna toh jagah available hogi.