On 17 December 1928, Bhagat Singh, Chandra Shekhar Azad, and _____ assassinated Saunders, a British police officer involved in the lathi charge that led to the death of Lala Lajpat Rai.

The Karachi Session of the Indian National Congress was held in the year ________ and was presided over by ________.

Where was the 'India House' organization, founded by Shyamji Krishna Varma in the early twentieth century, based?