Efficacy and Safety of Itolizumab in COVID-19 Complications Randomized, Parallel Group, Active Controlled Trial This is a Multi-Centric, Open label, Two Arm Randomized, Phase 2 Study.All eligible patients entering into the study will be randomized in 2:1 ratio to receive the treatment A (Best supportive care + Itolizumab) / B (Best supportive care) respectively. Each patient will undergo the treatment based on their assigned treatment for a month along with battery of tests that includes, but not limited to, cytokines and chemokine, along with recording of TLC; DLC, ANC, ALC; Platelet count; S. creatinine; T.Bilirubin; morning Vitals -pulse, BP, RR; Temperature, PaO2/FiO2, MAP, GCS.As Itolizumab is an investigational drug, the benefit to COVID-19 patients experiencing complications