A distinct approach for the synthesis of α-aminonitriles has been discovered by three-component reaction of nitroarenes, aldehydes, and TMSCN using indium in dilute aqueous HCl at room temperature. The products were formed in high yields (86–96%) within a short period of time (5–20 min). This one-pot conversion consists of the following steps: (i) reduction of nitro compounds to amines, (ii) formation