The COVAX plan, co-led by the World Health Organization and GAVI, aims to provide poor and middle-income countries with diagnostic tests, drugs and vaccines through a fund known as the Access to COVID-19 Tools (ACT) Accelerator, set up last April.
The Indian government has not provided any estimate of the cost of its vaccine programme, though it has said all resources will be provided to protect the population.
GAVI, an alliance of governments, drug companies, charities and international organisations, said it was in discussions with the Indian government over a support package.
“Providing a low range of support would exacerbate the country’s ability to allocate enough resources to mitigate the risks of continued transmission of COVID-19,” the GAVI report said.