Developer
                
                   135 Points
                   Joined February 2018
                
               
			  
			  
             
            
             Murali-ji, If the wife has the Pension Income as the only one income and that pension amount is less than prescribed limit of taxation, then there is no need to file ITR. If the wife has income from many other sources such as FDs, house rent income etc, then she is liable to file ITR and pay the tax.
One more thing, we can assume total Pension is 2,70,000.
Till F.Y 2017-2018, value of this amount should be shown as (2,70,000 - 15,000) 2,55,000 in the  ITR (15000 deduction for only women)
From F.Y 2018-2019, value of this amount should be shown as (2,70,000 - 15,000 -,40,000) 2,15,000 in ITR (additional deduction as per latest budget)