<span style="color: #222222;">Union Defence Minister Rajnath Singh, who is on a day's visit to Kerala, inaugurated the 90th annual pilgrimage of Sivagiri Mutt in Varkala, Thiruvananthapuram today morning.<br />''<br />''Making the inaugural address Mr. Rajnath Singh said that Sree Narayana Guru is a great social reformer who had imparted the message of cultural unity and his thoughts had spread the greatness of Indian culture not only in Kerala but across the world.<br />''<br />''Union minister of State for External Affairs V Muraleedharan also attended the event.</span><br />