Here is the translation of the given Hindi text to English: "AC bus and trailer collide on Expressway, 4 dead: A side of a 40-foot bus was blown off due to the driver dozing off, leading to the accident."

In Ambedkar Nagar, an AC bus and a trailer collided. The accident resulted in the death of 4 passengers, while 4 others were seriously injured. The bus was carrying around 50 passengers from Delhi to Darbhanga in Bihar. The accident occurred at 5 am on Friday on the Gorakhpur Link Expressway. The collision was so severe that the left side of the approximately 40-foot-long bus was completely damaged, trapping the passengers inside. A loud commotion erupted as people screamed for help. Most of the passengers were asleep at the time of the accident.