Ahead of crucial hearing in the Supreme Court in the suo motu cognisance case involving distribution of essential supplies and services during COVID-19 pandemic, the Union of India (UOI) on Sunday filed its affidavit in connection with the case. A three-judge bench of the Apex Court, headed by Justice Dr Dhananjaya Y Chandrahud will hear the case on Monday. The Centre in its affidavit stated that the COVID vaccine strategy of UOI is formulated to address immediate, medium-term and long-term perspectives. "On an immediate front, the availability, augmentation and enhancement of vaccines and completing vaccination of vulnerable groups is the topmost priority of the nation," said the Centre's affidavit accessed by ANI.