Vedic Mathematics is a book written by the Indian monk Swami Bharati Krishna Tirtha and first published in 1965. It contains a list of mental calculation techniques claimed to be based on the Vedas. The mental calculation system mentioned in the book is also known by the same name or as “Vedic Maths”. Its characterization as “Vedic” mathematics has been criticized by academics, who have also opposed its inclusion in the Indian school curriculum.Although the book was first published in 1965, Tirthaji had been propagating the techniques since much earlier, through lectures and classes. He wrote the book in 1957. It was published in 1965, five years after his death as 367 pages in forty chapters. Reprints were made in 1975 and 1978 with fewer typographical errors. Several reprints have been made since the 1990s.