Gurugram, Dec. 12 -- A 27-year-old man was killed after being struck by a speeding truck in a hit-and-run incident on the Delhi-Jaipur Expressway near Sidhrawali early Thursday morning. The victim has been identified as Ram Kumar Tyagi, a resident of Ghaziabad. Tyagi was returning from a wedding in Neemakathana, Sikar, Rajasthan, and was travelling in a bus which had stopped at the Old Rao hotel in Sidhrawali around 5 am for a refreshment break. According to police, Tyagi was crossing the expressway to reach a hotel on the other side when a speeding truck hit him. The truck fled the scene without stopping....