As thick black smoke billowed out of a multi-storey building in Delhi's Malviya Nagar on Wednesday morning, panic quickly turned into a desperate race to save lives. The massive fire, which broke out at Lemon Green Restaurant in the Hauz Rani area, claimed at least 21 lives and left several others injured. Amid the chaos, local residents stepped forward and helped rescue people trapped inside the burning building, with eyewitnesses describing scenes of fear, courage and desperation.