The Central Board of Secondary Education or CBSE has posted results of its Class XII board examinations on the websites www.results.nic.in, www.cbseresults.nic.in and www.cbse.nic.in. The results were announced at 12:40 pm today. Students can also use SMS or text message services of certain mobile phone operators. This year there was massive controversy over the Math paper, which has been called the toughest in a decade. Many students had emerged in tears from the examination hall after the Math exam in March, complaining that it was extremely tough, tricky and too lengthy.