Chandigarh Punjabi Manch celebrated Chandigarh Foundation Day as Black Day Chandigarh Punjabi Manch celebrated Chandigarh Foundation Day as Black Day -Punjabi supporters attacked U.T. in Sector 17, Chandigarh. protest against administration Chandigarh, 1 November, Chandigarh… Chandigarh Punjabi Manch celebrated Chandigarh Foundation Day as Black Day