Satyendar Jain on Sunday said some people did not turn up for coronavirus vaccination at the last moment, adding that the government cannot ask anyone to compulsorily take the jab.He also said that the number of vaccination centres in Delhi will be increased from 81 to 175 soon.In Delhi, a total of 4,319 healthcare workers - 53.3% of those registered - got the vaccine shots on the first day of the COVID-19 vaccination drive on Saturday, the minister said.Jain noted that a similar trend was observed across the country, adding that around 50% of those registered got the jabs on the first day."Some people decided not to turn up at the last moment.