Head constable dies in road accident in Greater Noida: A car hit him while he was on duty at Zero Point; the driver has been arrested.

Here is the translation of the given Hindi text into English: Head Constable Rajpal Singh, who was deployed at the Knowledge Park police station in Greater Noida, died in a road accident while on duty. On Wednesday night, he was hit by a speeding car while crossing the road at Zero Point. Rajpal Singh, who sustained serious injuries, was taken to the hospital by police personnel, where he succumbed to his injuries during treatment. The news of the accident spread grief throughout the police department. Originally from Datiana village in Muzaffarnagar, Note: I have maintained the original tone and ensured that the translation sounds natural in English. I have also restructured sentences as needed to ensure clarity and fluency in the target language.