Largest blood donation
- Saint Gurmeet Ram Rahim Singh Ji Insan
- 43732 people
- India Sirsa , Haryana , India
The largest blood donation involved 43,732 participants and was organised by Saint Gurmeet Ram Rahim Singh Ji Insan (India) at Dera Sacha Sauda, Haryana, India, on 8 August 2010. Each participant donated a unit of blood.