Long distance runners Kartik Kumar and Sanjivani Jadhav as well as pole vaulter Rosy Meena Paul produced personal best efforts to claim gold medals on an action-packed opening day of the Federation Cup Senior Athletics Championships here on Saturday.

In the other events of the day, Aishwarya Mishra ran an impressive race to clock a personal best time of 52.41 seconds en route to women’s 400m.