Hello Debraj,,
MFBF ( Repetitive Manufacturing Backflush) transaction suggested by SAP, with help of this Transaction you can perform the goods movement. With help of this trasaction you can do the GR and GI at same time, (As per REM Profile setting GI back flush at GR posting).
If you not selected the GR and GI at same time, in REM profile, and you want to separate back flush of GR and GI then you can use the T:code MF70.
You can also the Badi : "RM_BFLUSH_GOODSMVT" Goods Movements in Backflush -Repetitive Manufacturing
I hope this information help to you
Regards
Umesh Mali