Ordos (China), Jul 9: India clinched five medals, including a gold in the mixed 4x400m relay, to begin their Asian U-23 Athletics Championships on a strong note here on Thursday. The Indian quartet of Astik Pradhan, Sandra MolSabu, Sethu Mishra and ShravaniSachinSangle clocked 3 minute 18.64 seconds to take the top spot in the last event of the day for the country. Besides the gold, the Indians added one silver and three bronze medals on the opening day of competitions.