Chandigarh | Former Punjab Chief Minister Charanjit Singh Channi was again called for questioning on Friday, but he did not turn up. He had sent an application to the Vigilance Bureau for exemption from appearance. Which has been accepted by Vigilance. The investigating officers of the Vigilance Bureau have given a week’s time for further questioning. Now after seven days from Friday, Channi will appear before the investigating officers of Vigilance.