<br/>Special public prosecutor Ujjwal Nikam in the 26/11 trial today said that lone surviving gunman Ajmal Kasab has been following the al-Qaeda manual by changing his stand quite often but it would not affect the Mumbai attack case. Nikam said this outside the court where the trial of the Pakistani terrorist is expected to conclude soon. He said that the al-Qaeda manual says that a person trained in terror activities should attempt to derail investigation and court proceedings by changing his stand frequently. Earlier, Kasab had confessed before a magistrate, saying that Lashkar-e-Toiba (LeT) had carried out the Mumbai terror attack and he and nine others had come from Pakistan to commit the dastardly strikes. Four months later he retracted his confession in the trial court. Again, during the trial, Kasab had said that he wanted to make a guilty plea.<br/>