This is a prospective randomized controlled study which will be conducted on 60 patients who are within the decided inclusion criterias. 60 patients will be then randomly allotted in two groups GROUP I and GROUP P of 30 each by computer based randomized system. Patients will be premedicated with inj glycopyrrolate 0.2mg i.m, in fortwin 0.6mg/kg i.m. In operation theatre, inj midazolam 1mg i.v will be given and basal reading of HR, SBP, DBP, Oxygen saturation, will be noted. After induction with inj propofol 3mg/kg i.v , with loss of eyelash reflex, inj rocuronium 0.9mg/kg will be administered. After mask ventilation for 1 minute appropriate size airway device according to the group which patient belongs,  will be inserted. Effective ventilation with the device will be defined as bilateral equal chest movements and normal capnograph. Hemodynamic readings will be taken at 1,3,5,7,10,15minutes after insertion of device . Insertion attempts and ease of  insertion will be noted. More than two intertions attempts will be considered as a failure and that patient will be excluded from the study and patient will be intubated conventionally.  IPPV will be given to maintain EtCO₂ between 30-45mm hg. Patient will be maintained on oxygen, nitrous oxide, isoflurane, and intermittent inj vecuronium iv. Ryle’s tube will be inserted through the device and its ease of insertion and number of attempts will be noted. Oxygen saturation, EtCO₂ , airway pressure, inhaled tidal volume, exhaled tidal volume, minute ventilation is noted before, and after ten minutes of CO₂ insuffation and 10minutes after release of CO2. After surgery patient will be reversed with inj neostigmine 0.05mg/kg i.v and inj. Glycopyrrolate 0.008mg/kg i.v. After patient is conscious and follows verbal command patient will be transferred to post operative recovery room.

Complications such as incidence of cough, laryngospasm, blood on device, lip and dental trauma will be noted.

Each patient will be questioned after 12hrs of surgery regarding sore throat, dysphagia, dysphonia, numbness over tongue or oropharynx.