I got informed around 2nd week of January that my visa application was approved because of which I couldn't join Jan intake. When I checked the date, the visa started from October 2019 and it expires in November. Because of the pandemic, ,my course was deferred to May intake. Now it's been deferred to September intake. But I want to join in 2021 since the end of the pandemic is uncertain. Is it possible for me to extend my visa in this scenario?