During rotation of a body, the position vector is along x-axis and force vector is along y-axis then the direction of torque is

$\overrightarrow{{\rm T}}=\overrightarrow{r}\times \overrightarrow{F}$ using right hand rule we can determine the direction of $\overrightarrow{{\rm T}}$

Then ${\rm T}$ will be along plane perpendicular to x – y plane i.e., z – axis