With this study we want to evaluate whether laryngoscopic view is better in 25 degrees back up position as compared to sniffing position?  B. J. Lee et al in 2007 have shown that during laryngoscopy, the laryngeal view, as assessed by Percentage of glottis opening (POGO) scores, improves significantly in the 25 degrees back-up position when compared with the flat supine position. However 25 degrees back-up position has not been compared with the sniffing position which is standard of care for direct laryngoscopy. The aim of this study is to evaluate the effect of 25 degree back up position on laryngeal view compared with the sniffing position during direct laryngoscopy. The primary objective is to compare the laryngeal view in both positions by by modified Cormack – Lehane grading.  Secondary Objectives are to compare the laryngeal view in both positions after applying external laryngeal  pressure if necessary, to compare the difficulty in intubation with the help of Intubation Difficulty Scale(IDS)  and to find out the mode value of pillow height required to achieve optimal sniffing ( external auditory meatus to sternal notch ) position. 100 adult patients ASA I, II and III physical status posted for surgery under general anaesthesia with endotracheal intubation will be studied. A detailed preanaesthetic evaluation of airway will be performed which includes BMI, thyromental distance, interincisor gap and modified Mallampatti grading, and adequacy of neck movement. Patients will be randomized as Group S where intubation will be done in sniffing position and Group B where intubation will be done in 25 degrees backup position. Laryngoscopy will be performed in both positions in each patient followed by endotracheal intubation. Glottic visualization will be assessed by modified Cormack Lehane classification. Intubation Difficulty Scale (IDS) will assess the intubation difficulty.