निम्नलिखित में से किसने एक अभियान की रूपरेखा तैयार की जिसे 'रौलट सत्याग्रह' के नाम से जाना गया?

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?