Reason for preserving books of accounts for 8 years

To my knowledge, it is 10 years. Still, i am not aware of any amendments.

Dear , you are right we have to preserve it for eight year but it is not right for some case as minutes book life time and some others are there for life time.

and there is no answers for why, becoz  act says if act says for 7 or 77 or 777 years then what can we do.