Step 1: Recall what HSRA was.
Founded in 1928 at Ferozeshah Kotla, the Hindustan Socialist Republican Army brought together young revolutionaries like Bhagat Singh, Jatin Das, and Ajoy Ghosh under one organised banner.
Step 2: Note its wider aim.
It was not chasing violence for its own sake, its members wanted political freedom paired with a fairer, more just society for ordinary people.
Step 3: See its effect on the movement.
By staging bold actions against symbols of British power and by the courage shown at trial, it stirred young Indians across the country to join the freedom struggle.
Step 4: State the answer.
So HSRA marks a turning point because it gave revolutionary nationalism organised leadership and tied it to a bigger vision of social justice, not just the removal of British rule. Hence, HSRA's formation organised and gave ideological direction to revolutionary nationalism.