Pune : The Covidshield vaccine, developed by Oxford University and the Serum Institute, is in its final stages, Serum’s Adar Punawala said. In the same vein, Prime Minister Narendra Modi is visiting Pune on November 28 and will visit the Serum Institute to review the progress of the vaccine. It is learned that Prime Minister Narendra Modi will arrive in Pune on November 28. Registration for the third phase of Covishield vaccine tests in Pune has been completed. In India, the Serum Institute will supply 100 million doses of the corona vaccine by December.