The benzene ring to which >NH group is directly attached is activated for the attack of $\mathrm{B}{\mathrm{r}}^{+}$ as –NH group is highly ringh activating due to +R effect. the ring to which ${\mathrm{}}_{\mathrm{ƒ}}^{\mathrm{‚}}\mathrm{C}=\mathrm{O}$ group is directly attached is deactivated towards electrophillic substitution. As ${\mathrm{}}_{\mathrm{ƒ}}^{\mathrm{‚}}\mathrm{C}=\mathrm{O}$ group is ring deactivating due to –R effect in addition the ${\mathrm{}}_{\mathrm{ƒ}}^{\mathrm{‚}}\mathrm{N}\mathrm{H}$ group is ortho-para directing but para position is favourable for the attach of $\mathrm{B}{\mathrm{r}}^{+}$ . Hence the product formed is as follows