An impressive revenue of over Rs 117 crore has been earned by the Centre from scrap disposal during the ongoing cleanliness campaign, Union Minister Jitendra Singh said on Tuesday. In addition, office space measuring 32.54 lakh square feet has been cleared and made available for use after clearing the junk, he said. Singh, the Minister of State for Personnel, commended the Department of Administrative Reforms and Public Grievances (DARPG), being the nodal agency, while reviewing the progress at the end of the first two weeks of special campaign 3.0 here.