Telangana, Odisha, Chhattisgarh, and Haryana point out shortage of COVID-19 vaccine Vaamanaa SethiApr 5, 2021, 18:37 IST Business Insider Largest manufacturer of Covid-19 vaccines — Serum Institute of India warned against the shortage of raw material affecting the production. Chhattisgarh, Telangana, Odisha and Haryana have already raised the issue of insufficient supply of COVID-19 vaccines to the Centre government. Union health ministry posted a tweet addressing the issue — claiming no shortage of Covid vaccines at present and in future also.India, the largest producer of COVID-19 vaccines has managed to supply the vaccine to several countries like Germany, Maldives, Bangladesh etc. However, India halted the export of vaccines to other countries as the largest manufacturer of Covid-19 vaccines -- Serum Institute of India warned against the shortage of raw material affecting the production.