- Arvind Mishra
- 139/42/56 hour(s):minute(s):second(s)
- India (Dehradun,,Graphic Era University)
The longest lecture marathon lasted 139 hr 42 min 56 sec and was achieved by Arvind Mishra (India) at Graphic Era University, in Dehradun, India, from 1 to 7 March 2014. The lecture topic was on scientific computation.