Solution needed with sections plz it is the question from CS test paper 2010 series:
An assesse used to file his return of income showing income from rent on receipt basis and was assessed accordingly up to the assessment year 2009 -10. During the financial year 2009-10 he received a sum of Rs. 1,00,000 by way of enhancement for the last 6 years as the Govt department ( tenant) enhanced the rate of rent with retrospective effect, will the sum of Rs. 1,00,000 be taxable in the A.Y 2010 – 11? Can it be spread over the last 6 years? Is there any provisions of tax relief in such cases, like section 89(1) of the income tax Act, 1961? What are the provisions of the act governing such cases?