Noida, March 13 -- At least 35 night-shift workers were injured, with a 30-year-old man in critical condition, after they jumped from higher floors of a three-storey electric metres manufacturing unit in Noida Sector 4 after a fire erupted on Thursday and was still burning hours later.

The fire is suspected to have started around 5 am in the basement, where plastic material and electric metres were being stored, according to officials and workers. At least 250 people were in the building at the time.

"As locals alerted emergency services, firefighters and a police team rushed to the spot," said Rajiv Narayan Mishra, additional commissioner of police, Gautam Budh Nagar (law and order).

While an investigation into the cause of the fire i...