Why need FOB ? It is adjacent to PF1 & directly connected to Main Entrance/Stn. Bldg, Main Road. If I remember, It is marked as "Bayline" & also announced as Bayline in announcement.
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Ex: It is similar to PF1 @ Thane with Dead end directly to Stn Bldg. But difference is it adjacent to PF1 in MAQ, while Seperate PF with connection to PF2 in Thane.
Hope...
more... your are familiar with Thane PF1 Layout & understand.