Income tax computation on contract income

Hi,

I am retired employee of a private sector bank earning monthly pension. In addition to that I have worked for a few months post retirement on a contract basis with the same bank. The payment for such services rendered by me to the bank was made after a TDS deduction of 1% under section 194C. I am not clear on how I should compute income tax for the pension that I have earned and also the income from the contract services. Please clarify with references to appropriate sections/circulars.