Section 17(2)(c) in Rajasthan Transparency in Public Procurement Rules, 2013
(c)The single source may be selected out of the list of empanelled/registered bidders for the subject matter of procurement with the procuring entity or with any other procuring entity, where procuring entity uses the list of registered bidders of other procuring entity in terms of sub-section (5) of section 19 or suitable bidder identified through other reliable sources.