Satellite Pics of Space available at PGTN.The Space is available to the Left of the last PF in the Pic. Though might look a bit small in this Pic as its from the top ,they are more than Plenty . All those spaces where the trees stands also belongs to Railways.
Also if needed, there is an Old Goods Shed (The shed seen in Pic 1 ) which is now abandoned as it is shifted to PGT. That also covers a lot of non utilized space.