सविनय अवज्ञा आंदोलन के दौरान, अहिंसक क्रांतिकारियों के एक समूह 'खुदाई खिदमतगार' को लोकप्रिय रूप से किस नाम से जाना जाता था?

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?