TDS Invoices - Threshold Limits

 Hi,

I have intially created a TDS Thresheold Limit for SINGLE - 2000 and rate 2%. Raised an invoice for 1500 and the TDS didnt get attracted.

Later, On the same day he had setup a Threshold Limit (Exception) for the same vendor with CUMULATIVE - above 180000 , rate is 1%. Assigned the same vendor.

When the exception limit has crossed above 180000, the invoice is getting generated for 1% exception as well as the TDS invoice got struck in the interface table for INR 30.

Is this an error?

Regards,

Hari Charan