Tds on works contracts

As I understand, if material and labour components are bifurcated, then tax shall be deducted at source u/s 194C on labour alone. But if no separate figures can be ascertained, then tax shall be deducted on the whole amount.

Exactly, if the amount is inseparable, ded TDS on whole amount.

Exactly, if the amount is inseparable, ded TDS on whole amount.

 

Then TDS should be deducted on whole inclusive amt, shown in invoice.