The exploration force cultivates a distinctive outline for feature extraction procedure based on Discrete Wavelet Transform with ECG Signal for Arrhythmias detection in addition to Stenosis detection of Myocardial Ischemia with Real Cardiac Computed Tomography Angiogram images of both the gender with different age groups. Succeeding both the cardiac diseases ingests been classified with the k-NN classifier separately based on their levels of severity as normal and abnormal for arrhythmia disease patients and moreover as standard, early, minor and serious for Myocardial Ischemia patients. The objective of this work is to pigeonhole perfectly and flourish a creative arrhythmia finding taxonomy and One hundredth stenosis detection that can sign to great exciting premature Myocardial Ischemia (Lack of oxygenated blood supply to the heart) analysis. In the virtual reality result, DWT features works commendable for the classifier with the utmost 94% truthfulness and with RC CTA images clearly detects the blockage area and classification also done more closely to the groundtruth values. © 2018, Springer International Publishing AG.