Rahul Gupta1, Pradip Pokharia2, Amandeep Kaur3. 1. Department of Gastrointestinal Surgery, Synergy Institute of Medical Sciences, Dehradun, Uttarakhand, 248001, India. rahul.g.85@gmail.com. 2. Department of Radiology, Synergy Institute of Medical Sciences, Dehradun, Uttarakhand, 248001, India. 3. Department of Anaesthesia, Synergy Institute of Medical Sciences, Dehradun, Uttarakhand, 248001, India.