Prime Minister Narendra Modi will on Sunday dedicate to the nation the Sardar Sarovar Dam on river Narmada, described as Gujarat's lifeline by BJP leaders, at an event coinciding with his 67th birthday.

The foundation stone of the dam was laid on April 5, 1961 by the country's first prime minister Jawaharlal Nehru. However, it took 56 years to complete its construction.