At least nine people were killed after an explosion that occurred at a solar explosive company’s factory in Maharashtra’s Nagpur during the packing of explosives for coal blasting on Sunday, officials said. "Nine workers of Solar Industries lost their lives in an accident that occurred at 9 am today at Solar Industries India Limited, Chakdoh, Nagpur," Ashish Srivastava, Senior General Manager, Solar Industries India Limited, Nagpur said.