Semiconductor Electronics question for JEE Main, with solution

An n-p-n transistor in common-emitter mode has $V_{CC} = 10$ V, collector resistor $R_C = 2\ \text{k}\Omega$ and $\beta = 100$. Taking $V_{CE} = 0$ at saturation, find the minimum base current (in $\mu$A) that drives the transistor into saturation.