Semiconductor nanoparticles are currently being extensively studied due to their unique size dependent properties. It has been demonstrated by several groups that nanocrystalline II-VI semiconductors show enhanced luminescence, increased oscillator strength and shorter response time. There has been great interest to control the size of nanoparticles using surface capping agents. Polymers are able to achieve surface passivation, prevent particles from agglomeration which are in favour of controlling the particles size and size distribution effectively. Mn2+ doped CdTe nanoparticles using PVA as assisting agent were prepared from co-precipitation method. From powder X-ray diffraction studies, the crystal system is indexed to cubic phase and the corresponding lattice cell parameters are evaluated. The evaluated average crystallite size of prepared sample is in nano scale. SEM and TEM micrographs show irregular shaped particle size clusters and EDS analysis confirms the presence of constituent elements of the prepared material