Mrs Gandhi said: "The principles he laid for Indian national movement redefined freedom struggles all over the world."
She remembered Gandhi ji as the principal guiding personality, who led and inspired India and indeed the entire world with his eternal philosophy of non-violence, compassion, human dignity and commitment to the last human on the margins.
Expressing hope in young men and women of the 21st century, Mrs Gandhi prayed that Gandhian thoughts and deeds will forever continue to guide an entire generation on the path of truth, equality, justice and universal progress.
October 2 is the birth anniversary of Mohandas Karamchand Gandhi who is also known as the "Father of the Nation" and Lal Bahadur Shastri, the second Prime Minister of the country.
"Clarion call of 'Jai Jawan-Jai Kisan' given by him resonates even today in every nook and corner of India."
Remembering Mr Shastri's commitment to the Congress and freedom struggle, Mrs Gandhi described him as an organisational genius who served the party and nation relentlessly till his last breath.