** India's Raymond Realty RAYO.NS falls 6.21% to 679.7 rupees after Q1 results
** Stock set for worst day since listing after demerger from Raymond RYMD.NS on July 1
** Raymond Realty's Q1 net profit slumps 52%, while revenue falls 23%
** Core profit margin contracts to 10.5% from 13.5%
** RAYO says performance reflects sales moderation due to limited unsold inventory in its matured real estate projects
** Adds, second half of the year will see improved performance due to planned new launches
** RAYO down 32% from its list price on July 1
(Reporting by Ananta Agarwal in Bengaluru)
((Ananta.Agarwal@thomsonreuters.com))