CHENNAI: Left-arm spinners S Mukundhan (4/5) and B Sandeep (4/13) picked up four wickets each as Lalaji Memorial Omega (NIOS) defeated Grace Matric by seven wickets in a truncated TAKE Rotary Serenity Cup inter-school tournament match that was held at the Wahe Guru ‘B’ Ground here on Thursday. The match was reduced to a 20-overs-per-team contest due to overnight rain.