“…Anticancer (Kathiresan, Guanasekan, Rammurthy, & Govidswami, 1999), radioprotective, anticarcinogenic (Devi, 2001), antioxidant (Devi, 2001;Joshi, 2013a), chemopreventive (Prashar, Kumar, Banerjee, & Rao, 1994;Karthikeyan, Ravichadran, & Govindasamy, 1999), immunotherapeutic (Mukherjee, Das, & Ram, 2005), antimicrobial (Singh, Malhotra, & Majumdar, 2005;Joshi, 2013a), anti-inflammatory (Godhwani, Godhwani, & Vyas, 1987;Singh & Majumdar, 1997), analgesic, antipyretic (Godhwani et al, 1987), antispermatogenic (Seth, Johri, & Sundaram, 1981) and antistress (Bhargava & Singh, 1981) activities of this plant have also been reported. The essential oils of O. tenuiflorum have been reported to possess methyl eugenol (Joshi, 2013a), methyl eugenol, β-caryophyllene (Bhattacharya, Kaul, & Rajeswara Rao, 1996;Kothari, Bhattacharya, Ramesh, Garg, & Khanuja, 2005), methyl eugenol, (E)-caryophyllene, eugenol and, β-elemene (Awasthi & Dixit, 2007), methyl chavicol, and linalool (Khan et al, 2010) from India; β-bisabolene, 1,8-cineole and methyl chavicol (Kicel, Kurowska, & Kalemba, 2005) from Poland; methyl eugenol and isocaryophyllene (Gbolade & Lockwood, 2008) from Nigeria; eugenol, β-caryophyllene and caryophyllene oxide (Machado, Silva, Matos, Craveiro, & Alencar, 1999) from Northeastern Brazil; eugenol, β-elemene and β-caryophyllene (Pino, Rosado, Rodriguez, & Garcia, 1998) from Cuba; methyl chavicol, camphor and β-caryophyllene (Brophy, Goldsack, & Clarkson, 1993) from Australia. The aim of the present study was to investigate the essential oil composition of O. tenuiflorum (Krishna Tulsi) growing in North West Karnataka, India, using gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) analyses.…”