Largest mental arithmetic lesson
- Who
- Brain O Brain Kids Academy Private Limited
- What
- 3189 people
- Where
- India (Chennai)
- When
- 14 October 2018
The largest mental arithmetic lesson consists 3,189 participants, achieved at event organised by Brain O Brain Kids Academy Private Limited (India) in Chennai, Tamil Nadu, India, on 14 October 2018.
This is the second successful attempt at setting this record.