intimation u/s 143/1a

I am a pensioner and getting my pension from SBI.i have received above notice stating that amount of total pension mentioned in Itr is less than form 16; which was never issued by bank.The pension of March is paid in April,so the total amount of pension is calculated on the basis of pension and arrears received from 1st April to 31st March only.But the amount as per form 16 is from pension of April to pension of March in next year, whereas pension of March was paid in April,in next financial year.The deduction in return for 80c have been mentioned 150000 but 0 in form 16 and it is proposed by cpc to include that in income.please inform how to reply this notice for justifying the reality.It is a big harrassment to honest tax payers.