Pension arrear received, will it be taxable or releif u/s89

MOHIT SHARMA (G.M) (68 Points)

28 July 2016  
I want to know that a assessee is having pension income of Rs.404572 and has also received ARREAR of Rs. 203633/-. i want to know that will this arrear be completely taxable or i can claim relief u/s 89. also assesse has retired 13 years ago. Please help