How to credit TDS paid by challan281 into deductee PAN(s)

Hi,

An employee in my office has not paid tax every month. We found it in March-17 that his tax surpassed his salary. So, we paid partly by Book Adjustment (This is a govt. office) partly by Challan 281 (TDS). The first amount paid by Book Adjustment is reflected in 26AS. But the Challan amount has not come into 26AS page. I guess, this happened so because Challan 281 credits TDS amount into TAN. It has escaped our notice until he filed a belated return recently

Can any one please suggest how to credit this amount into individual PAN?

Thanks in Advance