Under -19 SIS Boys Basketball Team participated in CBSE Qatar Cluster Basketball Tournament organized by the Qatar Chapter at the Doha modern Indian school on 5th and 6th December 2015. Shantiniketan Indian school team defeated Ideal Indian School by 20 / 12 in the quarter final, and lost in the semifinal from Al Khor Indian School by 34 / 28. Later for the third position match SIS defeated MES Indian School by 32/ 12 and secure bronze medal in the Tournament.
