Hyderabad, Oct. 25 -- At least 20 passengers were charred to death, while another 12 passengers managed to escape with minor injuries when a private travel bus which they were travelling in was completely gutted in a massive fire near Chinnatekur village in Kallur mandal of Andhra Pradesh's Kurnool district early on Friday morning, the police said. The incident occurred at around 3.30 am, when the bus, belonging to Kaveri Travels, travelling from Hyderabad to Bengaluru with around 44 passengers, rammed into a motorcycle on National Highway 44, close to the Kurnool city outskirts. "The two-wheeler got trapped under the bus and hit the fuel tank, leading to an immediate explosion and rapid spread of flames throughout the vehicle," the police said. The majority of the passengers were fast asleep when the accident occurred. While a few passengers woke up to the sudden fire and managed to break the windows and jump out, many others were trapped inside as the flames engulfed the entire bus within minutes. Eyewitnesses said they heard screams for help before the fire consumed the bus completely. Locals rushed to the spot and tried to rescue the injured before fire tenders arrived. Firefighters from Kurnool deployed four fire engines to bring the blaze under control, but by then, the bus was reduced to ashes. Rescue teams shifted the injured passengers to the Kurnool Government General Hospital for treatment....