S-15535 is a phenylpiperazine drug which is a potent and highly selective 5-HT_1A receptor ligand that acts as an agonist and antagonist (weak partial agonist) at the presynaptic and postsynaptic 5-HT_1A receptors, respectively. It has anxiolytic properties.

Swaminathan Gurumurthy (Tamil: சுவாமிநாதன் குருமூர்த்தி;Hindi: स्वामिनाथन गुरुमूर्ती) is the co-convenor of the Swadeshi Jagaran Manch, a journalist and a chartered accountant in India.

He is a strong proponent of the traditional Indian economic wisdom that was a part of every home and village model but he was also associated with some of the biggest corporate deals in India.^{[citation needed]}

Gurumurthy was born in a small village, 160 kilometres South of Chennai (formerly Madras). He had his schooling in a local school and higher education at the Vivekananda College, Chennai. Unable to realize his dreams to study law, he chose to become a Chartered Accountant. After completing the course in 1972, he joined an auditing firm and was allotted the job of maintaining the books of some of the companies of the press baron, Ramnath Goenka. Impressed by this young accountant, in 1975, Goenka offered a job, which Gurumurthy declined.^{[citation needed]} In 1976, he started his own firm, Guru & Varadhan, which was financially supported by the Goenka family.^{[citation needed]} He was drawn into RSS since his college days and continues his affiliation with the organisation and has had an important role in many assignments. He is a leading member of the think-tank of Sangh Parivar.

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