The Hindu system of time reckoning divides a kalpa of 4.32 billion years into 14 manvantaras and hence one manvantara becomes 30,84,48,000 years or 308.448 million years. Hindu tradition also says that we are now passing through the Svetavaraha Kalpa and after the beginning of this Svetavaraha Kalpa, six manvantaras have gone and the seventh Vaivasvata Manvantara is in currency. According to a report (Times of India, 27-02-2007) man appeared on earth nearly 4.1 million years ago. Scientists, who believe in Darwins Theory of Evolution, are convinced that man has ascended from apes, most probably form chimpanzees who they consider closest to human being. According to their conviction men and chimpanzees had a common ancestor and at a certain stage of evolution they got separated from each other.