‘The sum of the digits of every yuga, for some obscure reason, is nine. When calculated in human years, Satya yuga lasts for 14,40,000 years. Treta yuga is 10,80,000 years, Dwapara yuga is 7,20,000 years and Kali yuga is 3,60,000 human years. The individual sum of all the digits in each year is nine. ‘Hindus have eighteen Puranas, 108 Mahapuranas (Upanishads), the Mahabharat has eighteen chapters, the battle lasted eighteen days, the Gita has eighteen chapters and the Bhagavata Purana, 18,000 verses. The sum of all these digits again equals nine.