Hi friend
As per your discussion i understood that you have corrected tds return by mentioning the interest on TDS .
For Filing the Corretion Return for Short Deduction please follow below steps.
1.Download Conso file
2.Update the amount of payment to respective deductee to the extend previously Deducted TDS then add one more deductee with same PAN number
example :
For Co you have paid TDS @ 1% instead of 2% E.g: 100000 TDS deductable is 2000
Now update previously mentioned deductee amount to 50000 TDS comes to 1000 @ 2%
Then add new deductee (same co ) enter amount of payment 50000 TDS comes to 1000 @ 2% by adding the challan you have paid