Teesra
In 2004, Saqlain Mushtaq, the developer of the doosra, claimed to have developed a new variant called the Teesra, which is a backspinner disguised as an off spinner. He was supposed to have used it in ICL matches. In 2012, Saeed Ajmal has claimed to have learned the art of teesra and is looking to use this delivery in the upcoming matches.
Read more about this topic: Doosra