An ECR based Heavy Ion Accelerator comprising of a superconducting Electron Cyclotron Resonance (ECR) Ion Source, normal conducting RFQ (Radio Frequency Quadrupole) and superconducting Niobium resonators is being developed at BARC under XII th plan. An 18 GHz superconducting ECR ion source (PK-ISIS) jointly configured with Pantechnik, France is operational at Van-de-Graaff, BARC. The ECR source was operated round-the-clock. The beam trials with ECR ion source system were conducted during November 2014 to February 2015 and subsequently during July 2015 to September 2015 as per regulatory permission. Various ion beams with different charge states were extracted and mass analyzed include; H + , 16 O +q (q = +1 to +8), 14 N +q (q = +1 to +7), 20 Ne +q (q = +1 to +7), 40 Ar +q (q = +1 to +15) and 129 Xe +q (q=+1 to +20). Beam quality for specific ions was measured by recording their transverse emittance in situ. Apart from the beam development studies, experimental measurements were also carried out by various users. These experiments were pertaining to the projectile X-rays spectroscopy, spectroscopic studies of the radiation damage in borosilicate glasses; irradiation of Iron-Chromium based molecular magnet target and irradiation of polymeric targets to study its radiation stability. This paper discusses the salient features and performance status of the superconducting ECR ion source system.