tcs - The Complete System, The Complete System (TCS) was first introduced 8 years back in 2011 for 11th & 12th Science English medium. After achieving excellent results in 11th & 12th Science for 4 consecutive years, it was introduced for the students of English medium of 9th & 10th at Shannen School (GSEB), Fatehgunj. The Core team to teach and manage 11th & 12th Science are very experienced subject teachers of NEET, JEE (Mains), GUJCET and are working together for more than 13 years at INSPIRONS ACADEMY OF SCIENCE (IAS).