Dear Concerned,
In reference to above as yourself is in possession of the property and the petrolpump is not operational, file an application in the concerned court stating that you need to use the land for XYZ reason and for the same seek permission for dismantling of the petrol pump.......(in case you dont want to pursue) . Or if there is a provision in the lease deed / the dealership agreement ...check if you can re brand the petrol pump with some other petroleum company.....
Best of luck