SA-2 Telugu Principles of Evaluation - SA-2 Exam Key. Summative Examinations Key, Principles of Evaluation for 6-10th Class is released by SCERT. This key can be used for Evaluation the 6-10th Papers of SA - 2 Exams. Download the Telugu SA 2 Key below. 6th Class SA-2 Telugu Key, 7th Class SA-2 Telugu Key, 8th Class SA-2 Telugu Key, 9th SA-2 Telugu Key, Download Composite Telugu SA-2 Papers Key.