After obtaining approval from Post-graduate Research Monitoring Committee and Institute Ethics Committee, this study will be registered in Clinical Trial Registry-India. Adult patients (>18 years) with ASA PS 1 or 2, undergoing surgery under general anaesthesia will be included in this study after obtaining informed written consent. Patients will be premedicated with tablet diazepam 0.1 mg.kg^-1 on the night prior to surgery and on the morning of surgery. Patients will be kept fasting as per American Society of Anaesthesiologists (ASA) guidelines. Baseline vital parameters will be obtained after connecting the patients with ECG, non-invasive blood pressure (NIBP) and pulse oximetry. Low frequency echocardiography probe (1-5 mHz, My LabX5, Esaote, Genova, Italy) will be used to record the study parameters. LV diastolic function will be assessed by an anaesthesiologist who has experience in transthoracic echocardiography (TTE) at least for one year. Apical-four chamber (A4C) view will be obtained by placing the echocardiographic probe over the apical impulse and by keeping the probe horizontally with orientation marker facing left side. Pulse wave Doppler sampling will be obtained at mitral valvular leaflet tips to obtain E wave which represents early passive diastolic filling and A wave that results from atrial contraction. Deceleration time will be obtained from E wave. E/A ratio will be calculated. Tissue Doppler Imaging will be utilized to measure mitral annular peak velocities. Tissue Doppler sampling will be done at septal mitral annulus to obtain septal eËŠ; it will be done in lateral mitral annulus to obtain lateral eËŠ. The machine will calculate average E/eËŠ. Left atrial (LA) maximal volume index will be obtained by measuring its length and transverse diameter in A4C or apical 2 chamber view, one to two frames prior to opening of the mitral valve. Tricuspid regurgitation maximum velocity will be obtained by placing the continuous wave Doppler at the regurgitant jet area (can be located by colour flow Doppler) in A4C view. After obtaining these baseline echocardiographic variables, patient will be induced. All patients will receive Ringer’s lactate at rate of 10 ml.kg^-1.hour^-1 after securing intravenous line. Patients in group P will be induced with 2 mg.kg^-1 of propofol and patients in group E will be induced with 0.3 mg.kg^-1 of etomidate. Induction agent will be administered over the span of 30 seconds. Ventilation of the patient will be assisted with breathing circuit of anaesthesia workstation (with FiO₂ of 1.0), if required. Depth of anaesthesia will be monitored by BIS (Bispectral Index) every minute till the end of this study. Heart rate, NIBP and SpO₂ will be monitored for every minute till the end of this study. The aforementioned parameters will be measured in sequence, 30 seconds after administration of the induction drugs. After completion of this study, patients will be managed as per the discretion of the attending anaesthesiologist.