Regarding Sec 194 Q of Income Tax

Respect all,

I have a query regarding section 194 Q of Income Tax

I have purchased goods from My suppliers is Rs.70/- Lakhs exclueding gst for the period from April 21 to Jun 21 that is over Rs.50/- Lakhs & We have a purchased good of Rs.10/- Lakhs from him in Jul 21

Now on which amount we have to deduct TDS on Rs.10/-Lakhs or Rs.30/- Lakhs ( Rs.70 Lakhs - 50 Lakhs = Rs.20 Lakhs + Rs.10 Lakhs )