News by PTI, BBC and Forbes support that India is the world's largest manufacturer and supplier of hydroxychloroquine drug.
Forbes on 09 April 2020 quoting Sudarshan Jain said that domestic demand for hydroxychloroquine is 3 million tablets a month, but we have the capacity to produce 150 million to 200 million tablets a month and he also adds that it is difficult to predict the demand in future as there is no information that how many will be affected due to COVID-19.
BBC states that India is the world's largest manufacturer of hydroxychloroquine and the Indian government lifted the ban on the export of this drug.
The COVID-19 pandemic has given rise to a lot of potentially dangerous misinformation. For reliable advice on COVID-19 including symptoms, prevention and available treatment, please refer to the World Health Organisation or your national healthcare authority.