The correct option is B Research Designs and Standards Organisation
The Research Designs & Standards Organisation (RDSO), the research arm of Union Ministry of Railways, had launched New Online Vender Registration System on January 9, 2018. This new system provides major improvements and paradigm changes in the registration system over the earlier system. Public access to the information, expeditious process completion with defined timelines, simplification of procedures, round-the-year services, availability of all related information on RDSO Website, constant monitoring at all levels, reduction in cycle timelines, regular updation of online data, user-friendly interface etc. are the hallmarks of the new system. And also, there is no need for vendors to visit RDSO office for any activity related to his case for registration.