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COVID-19 (Coronavirus disease 2019) is a transmissible disease initiated and propagated through a new virus strain SARS-CoV-2 (Severe Acute Respiratory Syndrome Coronavirus-2) since 31 st  December 2019 in Wuhan city of China and the infection has outspread globally influencing millions of people. Here, an attempt was made to recognize natural phytochemicals from medicinal plants, in order to reutilize them against COVID-19 by the virtue of molecular docking and molecular dynamics (MD) simulation study. Molecular docking study showed six probable inhibitors against SARS-CoV-2 M pro  (Main protease), two from  Withania somnifera  (Ashwagandha) (Withanoside V [10.32 kcal/mol] and Somniferine [9.62 kcal/mol]), one from  Tinospora cordifolia  (Giloy) (Tinocordiside [8.10 kcal/mol]) and three from  Ocimum sanctum  (Tulsi) (Vicenin [8.97 kcal/mol], Isorientin 4′- O -glucoside 2″- O - p -hydroxybenzoagte [8.55 kcal/mol] and Ursolic acid [8.52 kcal/mol]). ADMET profile prediction showed that the best docked phytochemicals from present work were safe and possesses drug-like properties. Further MD simulation study was performed to assess the constancy of docked complexes and found stable. Hence from present study it could be suggested that active phytochemicals from medicinal plants could potentially inhibit M pro  of SARS-CoV-2 and further equip the management strategy against COVID-19-a global contagion.HighlightsHolistic approach of Ayurvedic medicinal plants to avenge against COVID-19 pandemic.Active phytoconstituents of Ayurvedic medicinal plants  Withania somnifera  (Ashwagandha),  Tinospora cordifolia  (Giloy) and  Ocimum sanctum  (Tulsi) predicted to significantly hinder main protease (M pro  or 3Cl pro ) of SARS-CoV-2.Through molecular docking and molecular dynamic simulation study, Withanoside V, Somniferine, Tinocordiside, Vicenin, Ursolic acid and Isorientin 4′- O -glucoside 2″- O - p -hydroxybenzoagte were anticipated to impede the activity of SARS-CoV-2 M pro .Drug-likeness and ADMET profile prediction of best docked compounds from present study were predicted to be safe, drug-like compounds with no toxicity. Holistic approach of Ayurvedic medicinal plants to avenge against COVID-19 pandemic. Active phytoconstituents of Ayurvedic medicinal plants  Withania somnifera  (Ashwagandha),  Tinospora cordifolia  (Giloy) and  Ocimum sanctum  (Tulsi) predicted to significantly hinder main protease (M pro  or 3Cl pro ) of SARS-CoV-2. Through molecular docking and molecular dynamic simulation study, Withanoside V, Somniferine, Tinocordiside, Vicenin, Ursolic acid and Isorientin 4′- O -glucoside 2″- O - p -hydroxybenzoagte were anticipated to impede the activity of SARS-CoV-2 M pro . Drug-likeness and ADMET profile prediction of best docked compounds from present study were predicted to be safe, drug-like compounds with no toxicity. Communicated by Ramaswamy H. Sarma

journal of biomolecular structure and dynamics

Targeting COVID-19 (SARS-CoV-2) main protease through active phytochemicals of ayurvedic medicinal plants –  Withania somnifera  (Ashwagandha),  Tinospora cordifolia  (Giloy) and  Ocimum sanctum  (Tulsi) – a molecular docking study