Don't think so .... I visited the station today & observed the following:-
1) Platform 1(Track 1) having the Main Station Building had 22609/10 MAQ-CBE Intercity Shunted
2) Track 2 had 12685/12686 MAS-MAQ S/F stabled without any platform
3) Platform 2 (Track 3) had 16855/56 PDY-MAQ Exp
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Platform 3 (Track 4) had 12619/20 Matsyagandha Exp arriving (mentioned in pic)
5) FOB had a staircase only for access to Platform 1 & 2/3 corresponding Tracks 1,3 & 4.... There was no staircase for Track 2 that means it was for stabling purposes only
5) After Platform 3 there were only Stabling Lines of the Coaching Depot Yard followed by the pitlines

4 Platforms.
1,2,3 - PF which can hold 23 Coaches.
"Bayline" PF - (Adjacent to PF1) with Dead End accomodates 8 Coaches.
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Trains that start/terminate at Bayline PF :-
70105/06...
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DEMU
56642/43 Passenger
56644/45 Passenger
56646/47 Passenger
22636 Intercity Exp.

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.
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your are familiar with Thane PF1 Layout & understand.