Which one of the following is not true regarding Hindustan Socialist…

The Hindustan Socialist Republican Association (HSRA) grew out of the Hindustan Republican Association (HRA), which had been founded in 1924. In September 1928, a group of revolutionaries met in Delhi and reorganised the HRA into the HSRA, adding an explicitly socialist programme to the movement's existing commitment to armed revolutionary action against colonial rule.

Checking each statement against this history:

• Bhagat Singh, along with Chandrashekhar Azad, Bhagwati Charan Vohra and other revolutionaries, led the reorganisation into the HSRA — this claim about the founders holds.

• The reorganisation meeting was held in 1928 at Firozeshah Kotla in Delhi — this claim about the year and venue holds.

• The meeting was not held at Amritsar in Punjab; it was held at Firozeshah Kotla in Delhi — this claim about the venue does not hold.

• HSRA members Bhagat Singh, Rajguru and Chandrashekhar Azad assassinated J. P. Saunders, an Assistant Superintendent of Police, in December 1928 in Lahore — this claim holds.

Amritsar is significant for this period as the site of the 1919 Jallianwala Bagh massacre and the later Akali Gurdwara Reform movement, not for the HSRA's founding meeting — a plausible-sounding but factually wrong location for this particular event.

Hence, the statement placing the founding at Amritsar in Punjab is the one that is not true, making it the option to choose.