With mercury levels rising steadily, a man practises yoga under the shade of a tree as part of his daily routine on a hot Thursday morning on the outskirts of Zirakpur. Tribune Photo: Ravi KumarStudents of the Dental College of Panjab University cover their heads to shield themselves from the afternoon heatwave on the university campus on Thursday. Tribune Photo: Pardeep TewariA woman with her child in Jalandhar on Thursday. Photo: Sarabjit SinghPanicked parents pick their children after the school receives a bomb threat email in Ludhiana. Photo: Ashwani DhimanYoung graduates during the 7th Law Convocation of Panjab University on Thursday. Tribune Photo: Pardeep TewariAll India Mahila Congress during the launch of a nationwide postcard campaign at General Post Office, Gol Dak Khana, in New Delhi on Thursday. Tribune Photo: Mukesh Aggarwal(From left) Iqbal Singh Jhunda, Giani Harpreet Singh President, Shiromani Akali Dal (Punarsurjit), Sucha Singh Chhotepur and Bibi Jagir Kaur and other senior leaders during a press conference in Chandigarh on Thursday. Tribune Photo: Ravi KumarA hawker prepares fresh sugarcane juice to beat the heat in New Delhi on Thursday. Tribune Photo: Mukesh AggarwalBJP Mahila Morcha workers raise slogans during the Jan Aakrosh Mahila Padyatra at Chaura Maidan in Shimla on Thursday. Tribune Photo: Lalit Kumar