Union Minister Jitendra Singh Sunday said incidents of stubble burning have risen by 160 per cent in Rajasthan and 20 per cent in Punjab from October 2021 to October this year. Farm fires in Punjab rose from 13,269 in October 2021 to 16,004 in October 2022, while their number rose from 124 to 318 in Rajasthan during this period, Singh said. This, he said, implies that the governments in the two states are not doing enough to check stubble burning and are, on the contrary, increasingly contributing to the deteriorating air quality in Delhi-NCR.