NEW DELHI: Abhijit Mukherjee, son of former President Pranab Mukherjee, on Monday responded to his sister Sharmistha Mukherjee’s criticism of the Congress party, saying restrictions due to the Covid-19 pandemic prevented gatherings, including a rally planned by Congress, at the time of their father’s death in August 2020. Sharmistha Mukherjee has cited Congress president Mallikarjun Kharge’s proposal for a memorial …