My Son is studying in class IX of Hillwoods School in Gandhinagar, Gujarat, The school has not promoted his in class Xth and detained his in class IXth due to his average performance in the only One particular subject Social Science in examination 2012-2013. I personally met with her School Principal and requested to promote my Son in Xth class to avoid negative impact and De-motivation / stress on the growing child, but she refused to promote his. (His Class Teacher Is Support for Promotion but principal is refuse) My Son is under stress and would request you to let me know that any CBSE affiliated Govt. School can Detain/ Fail any student due to poor performance in one examination up to class IX as per CBSE guidelines ? Is there any possibility to promote his into class under CBSE Guideline for Detention / CBSE Promotion Policy for Class IX Students under CCE 2012 - 2013 ??