LUCKNOW : The novel coronavirus toll in Uttar Pradesh rose to 321 on Wednesday with the biggest single-day spike of 20 deaths, while 275 new cases of the pandemic took the tally to 11,610, the state health department said.There are 4,318 active cases of the coronavirus disease (COVID-19) and 6,971 people have recovered, health principal secretary Amit Mohan Prasad said.There have been 321 COVID-19 deaths and the number of confirmed cases is 11,610, Prasad said.As many as 13 264 samples were tested on Tuesday, the highest so far, Prasad said, adding that over 4 lakh tests had been conducted in the state.On the tracking of migrants who have returned to the state, Prasad said accredited social health activists (ASHA) were tracking them by.