Sudoku puzzle

At the launch of Arvind Virmani’s book on Wednesday, Finance Minister Pranab Mukherjee said he was intrigued by the book’s title, The Sudoku of India’s Growth. He said he’d have thought that his chief economic advisor would not think India’s growth surge was a puzzle and that he would actually know what had driven the growth. Having got everyone laughing, Mukherjee said that though he had not read the book in any great detail, his interaction with Virmani had convinced him that though the growth may have puzzled many, Virmani actually had the key to the puzzle. Suman Bery of NCAER said meanwhile that the appropriate metaphor was not Sudoku but Rubik’s Cube.