Background: Anesthesiologists have a significant amount of cause for worry when it comes to the patient's inability to maintain a patent airway after the induction of general anaesthesiafor different ENT surgeries such as tonsillectomy, laryngeal surgery, and thyroid surgeries. Tracheal intubation with direct laryngoscopy is still the technique of choice for the majority of situations when it comes to securing the airway. Nonetheless, direct laryngoscopy intubation may be challenging in 1.2% of patients, even those who seem to have normal airways. Aim and objectives: The objective is to conduct a preoperative assessment of risk factors linked to challenging intubation in ENT surgeries Material and methods: Consent to participate in the study was obtained from one hundred adults of either gender who were planned to undergo elective ENT surgeries like tonsillectomy, thyroid surgeries and laryngeal surgeries requiring general anaesthesia and tracheal intubation. After inducing the patients with injections of thiopentone sodium 5 mg/Kg, nalbuphine 0.1 mg/Kg, and atracurium 0.5 mg/Kg, a laryngoscopy was carried out after three minutes. Throughout the process of intubation, some details were recorded, such as the number of tries, the best view of laryngoscopy, the required size of the blade, and whether or not tracheal pressure was administered. The view at laryngoscopy was graded by Cormack Lehane in the following manner:Grade 1 - if part of vocal cord visible. Grade 2 - if only the arytenoids were visible.Grade 3 - if only epiglottis was visible.Grade 4 - if epiglottis was not visible.Results:The incidence of difficult intubation, as determined by nine different characteristics, is three percent (3%) out of every hundred instances. One of these was a Cormack-Lehane Grade II case, one was a Grade III case, and one was a Grade IV case. Of the Grade III cases, one was intubated on the third attempt with the stylet, and the other was intubated by manipulation. The Grade IV case was intubated with the assistance of an intubating laryngeal mask. Mallampati class-3, neck circumference >40cms, and subluxation grade-2 each had a sensitivity of 35%, 19%, and 18% respectively; only patientswith inter-incisor distance of 4.5 cms had a 100% sensitivity. Conclusion: This study found that an inter-incisor distance of 4.5centimetres was the most sensitive predictor for difficult intubation, followed by a Mallampati class-3, a neck circumference of more than 40 centimeters, and a subluxation grade-2. Even though all of the tests have their uses, the study came to the conclusion that an inter-incisor distance of 4.5centimeters was the most sensitive predictor.