Congress president Sonia Gandhi on Thursday said Indira Gandhi taught the nation to stay united and people must follow that path."We must learn as much as we can from the life of Mahatma Gandhi, Indira Gandhi and Maulana Azad...Indira Gandhi taught us how to stand united," the Congress president said in her speech to commemorate the 98th birth anniversary of Indira Gandhi at the Indian Youth Congress convention here."She dedicated her life to the unity of our country," she said.Sonia Gandhi said the late prime minister always stood for inclusion and equality, and lauded her for her farsightedness and ushering in Green Revolution in India.