Pledging for ‘Swachh Bharat, Swasth Bharat’, NGO Aorta Foundation, led by Vishakh Venkat and his team made the biggest postcard of 2.43 m by 1.52 m (8 ft by 5 ft) with signatures of 1,605 children from government schools in Bengaluru, Karnataka, as on 18 December 2016. The 12 mm (0.4 in) thick plywood postcard was addressed to Prime Minister Narendra Modi.