In a message on the anniversary of the bombing on the Japanese city, he emphasised that solutions to problems of humanity lie in peace and progress.
"My homage to all those who lost their lives in Hiroshima. The bombings remind us of the horrors of war & their effect on humanity," Modi said.
"Solution to problems of humanity lie in peace & progress. Let us walk shoulder to shoulder to create a peaceful world, free from violence," he added.
On August 6, 1945, the United States dropped an atom bomb on Hiroshima city of Japan, marking the first use of a nuclear weapon, that killed thousands of people.