Income miscalculation

In 2011 due to RBI rules change I receive all the earnings from my Paypal India account to my Bank account in India. I earned this income in Paypal from 2008 to 2011-mid and due to rules change the total incoming money in my Savings account comes to 6.5 lacks.

Since actually I earned the income in Paypal from 2008 to 2011 mid, am I liable to pay tax? As if we break down the income into actual number of years this is earned then I don't comes under taxable Income.