Hyderabad, Nov 28 (ANI): Prime Minister Narendra Modi on November 28 visited the Bharat Biotech facility in Hyderabad to review the Covid-19 vaccine development. br br Earlier in the day, PM also visited the Zydus Biotech Park in Ahmedabad to review the development of Covid-19 vaccine candidate ZyCOV-D. br br PM Modi will also visit the Serum Institute of India in Pune to review vaccine development and manufacturing process.