Role of Intraoperative Fluorescence Angiography using Indo Cyanine Green (ICG) during Colorectal Cancer Surgery

Intervention1: ICG Arm: Assessment of colorectal vascularity after a bolus ICG injection intravenously at the time of surgery. Control Intervention1: Non ICG arm: Conventional assessment of colorectal vascularity without ICG assessment under white light Primary outcome(s): Anastomotic leak at 30 days from the day of surgery. Revision of bowel segment, stoma placement, vascular anomalies - will be recorded intraoperativelyTimepoint: Anastomotic leak at 30 days from the day of surgery. Revision of bowel segment, stoma placement, vascular anomalies - will be recorded intraoperatively Study Design: Randomized, Parallel Group Trial Method of generating randomization sequence:Random Number Table Method of allocation concealment:An Open list of random numbers Blinding and masking:Open Label