Introduction: The novel corona virus disease 2019 -23 (COVID-19) pandemic so many Indian patients have experienced with their multisystem involvement, critically ill patients and treated with in intensive care units (ICUs), critical care unit (CCU) and even so many died as unable to get proper treatment and cardiac rehabilitations (CRs) at the acute infections and critically ill patients. Material and Methods:We have selected those patients having systemic effects, cardiac involvement patients prognosis and diagnosis with COVID-19 and their cardiac complicacy. Patients with COVID-19 develop cardiac complications are including with the heart failure, myocarditis, pericarditis, vasculitis, acute coronary syndrome (ACS), cardiac arrhythmias (CAMs), trigger and accompanying with cardiac diseases like coronary artery diseases (CAD) and coronary vascular diseases (CVD). We identify the recommendations of scientific and professional treatment and cardiac rehabilitations given by our organizations in the area of rehabilitation in our institutions respectively. We performed more than 500 cases in critical conditions and recovered in our main data bases. In our organizations were identified and selected as very specific contribution related to our study and excluded the single case reports and those are not interested to participate to our study. SARS-CoV-2 specific IgG and IgM, mild increases in the CD4+T cells, diverse changes in the several newly developed biochemical and haematological biomarkers are also studied. Results:Cardiac Rehabilitations (CRs) taken Patients with COVID-19 develop cardiac complications are including with the heart failure, myocarditis, pericarditis, vasculitis, acute coronary syndrome (ACS), cardiac arrhythmias (CAMs), trigger and accompanying with cardiac diseases like coronary artery diseases (CAD) and coronary vascular diseases (CVD) are improved more than (85%-95%). In hospitalized patients 10-15% with worse outcomes, longer stay in the intensive care unit (ICU) & 5-8% in cardiac critical care (CCU), and higher risk of death ratio of COVID-19 cardiac involvement ranges between 0-10percent. Deconditioning rate is increased due to immobility and muscle involvement in the pre and post-COVID-19 management is very poor at that time. COVID-19 Patients need CRs facilities. Conclusion: Cardiac Rehabilitations (CRs) findings suggested that COVID-19 patients showed a gradual changes in improvement in exercise capacity of critically ill patients are significantly declined in the SARS-CoV-2 specific IgG and IgM, test reports are mild increase in CD4+ T cells, and diverse changes in several biochemical and hematological biomarkers after hospital discharge in 6-month. Cardiac Rehabilitations (CRs) effect on improving exercise capacity was observed in COVID-19 patients in a dose–response fashion after 6-months. CRs suggested that a batter innovation strategy to promote recovery in patients during/after acute COVID-19.Although higher certainty in the evidence in convalescent plasma for the treatment of individuals with moderate to severe diseases. It does not reduce mortality and has little to no impact on measures of clinical improvement. Cardiac Rehabilitations (CRs) taken Patients with COVID-19 develop cardiac complications got better treatment through the CR experts clinically and feeling good.