The mercury was recorded below 10 degrees Celsius at several places in Rajasthan where Churu registered 4.2 degrees Celsius, the lowest temperature in the state, the Meteorological department here said on Friday. Pilani in Jhunjhunu emerged as the second coldest place in the state on Thursday night, recording a low of 5.1 degrees Celsius. It was followed by Sikar, Alwar, Nagaur, Phalodi (Jodhpur) and Sriganganagar where the minimum temperature stood at 6, 6.5, 6.9, 7.4 and 7.5 degrees Celsius, respectively.