I'm not sure. I don't know if there is anything so concrete in Hindu texts but I haven't studied them. According to
this We are in the 51st Brahma year and one Brahma year is 8.64 billion human years. From the site:
quote:
Current scientific estimates of the age of the universe range from 7 billion to 20 billion years. By contrast, the Hindu theory calls for a universe more than 150 billion years old.
Though I can not vouch for the accuracy of the site...we'll just have to wait for Nitai to tell us all.