Tender For corrigendum : supply of sitc of x ray diffraction equipment and its accessories - sample types and general analysis capabilities , x ray generator , x ray tube , goniometer , sample holders and sample stage , calibration standards , detector , beam optics incident beam and diffracted beam optics for line focus powder and thin film analysis , high temperature sample stage , software , computer , printer , instrument electronics and safety , water chiller unit , power supply ups , micro diffraction measurment attachment with autosampler holder unit