Indira Gandhi "fought for secularism, against all those forces seeking to divide the Indian people on lines of religion and caste", Congress President Sonia Gandhi said on Sunday.
On the centenary of the birth anniversary of the former Prime Minister, Sonia Gandhi spoke at the inauguration here of a photo exhibition, "A Life of Courage', on the life and achievements of Indira Gandhi."
"I have heard Indiraji being referred to as the Iron Lady. But iron was only one of the elements in her character; generosity and humanity were just as prominent traits," she said.
Indira Gandhi, daughter of first Prime Minister Jawaharlal Nehru, was born on November 19, 1917.
She was Prime Minister from January 1966 to March 1977 and again from January 1980 until her assassination on October 31, 1984.
On Sunday, Sonia Gandhi also recalled her relationship with the former Prime Minister, who was also her mother-in-law.
"I came to know Indira Gandhi intimately as the head of our small family over the 16 years that we lived together in one household, just a few meters from here. I saw her at close quarters, in every mood and circumstance.
"I came to understand how passionately she felt for her country, how deeply she cared for the poor and oppressed, how faithfully she followed the teachings imbibed from her father — from him, and from the other great men and women of the Indian freedom struggle who had been part of her growing up," she said.