Closer look at the BSR bound special. This is a very very rare photo of double decker coaches being hauled by a diesel loco! The rake of Valsad fast passenger was used for this service. (Vivek Manvi)

WDG-3A #13527 from Vatva sends up a plume of smoke as it starts from Vile parle with a special stopping at all DDR-BSR shuttle service. (Aadil Shaikh)

Karnavati express negotiates a curve before Andheri, hauled by VTA WDG-3A #13461. (Pratik Joshi)

ABR WDM-2 #18708 departs from Andheri with a special shuttle service in tow. (Pratik Joshi)

Trial EMU on down harbour line approaches the NZ at Vile parle. (Aadil Shaikh)

The neutral zones for fast lines. The NZ nearer to camera is of down fast line, and the farther one is of up fast line. (Akshay Marathe)

Up fast trial run 1/3: WCAM-1 #21832 lowers its AC panto (Akshay Marathe)

Rake #1153, working as the up slow line trial. (Vivek Manvi)

Face off! The up trial EMU and Sayaji Nagari express about to cross each other near the neutral zone! WDM-3A #16160 hauls the Sayaji Nagari express. (Vivek Manvi)

Up fast trial run 2/3: It coasts through the NZ... (Akshay Marathe)

Up fast trial run 3/3: ...And finally raises DC panto. (Akshay Marathe)

Neutral zone? I don't care! This is what WDM-3A #16160 seems to be saying as it passes below the raise panto board least bothered about what the board says. It was in charge of the Sayaji nagari express. (Akshay Marathe)

VTA WDG-3A #13460 hauls the Dadar-Bikaner express towards Andheri with a dead WCAM-1. At BSR, the diesel will be detached and WCAM-1 will take over. (Aadil Shaikh)

The first train to leave Mumbai hauled by an electric loco after the block - Ranakpur express. WCAM-1 #21834 gets the honour to work the first train. (Vivek Manvi)

Side view of WDP-4 #20098. It returned with 2995, the same train which it had hauled to Mumbai. (Akshay Marathe)