Delhi recorded over 15 per cent rise in crime in 2021 as compared to the previous year, Police Commissioner Rakesh Asthana said on Thursday, noting that the increase in crime rate was due to less number of cases being lodged during the COVID-19 pandemic in 2020. Citing data, police said 3,06,389 cases were reported in 2021 as compared to 2,66,070 cases the previous year.