Prime Minister Narendra Modi paid tributes to Sardar Vallabhbhai Patel on Saturday morning on his 145th birth anniversary at the Statue of Unity in Gujarat's Kevadia. The PM also read out a pledge towards strengthening and maintaining the nation's unity and internal security. The day is celebrated as the Rashtriya Ekta Diwas. PM Modi is scheduled to inaugurate the Kevadia-Sabarmati seaplane service. On Friday, he had flagged off the Ekta Cruise Service, a ferry ride from Shrestha Bharat Bhavan to the Statue of Unity in Kevadia.