A 34-year-old man from Odisha's Rourkela has set a Guinness World Record by running continuously on a manual treadmill for 12 hours straight. Sumit Singh continued running on the treadmill from 8:15 am to 8:20 pm on March 12, covering a distance of 68.04 kilometres. The ultra-runner earlier completed 33 full marathons within a span of just one month.