The maximum number of e-books published in a single day is 10 and this record was set by Rajesh Sarswat (born on July 1, 1970) of Ghaziabad, Uttar Pradesh. The e-books titled ‘N.C.E.R.T solutions’ for Maths and Science were published on November 22, 2019 for class VI to XII students, as confirmed on February 20, 2020.