The Kerala long jumper is determined to bounce back after finishing fourth in the recent Asian Athletics Championships.
Shaili Singh won the silver in women’s long jump with a best effort of 6.54m.
India's top shot putter Tajinder Pal Toor shattered his own Asian record with a huge throw of 21.77m, qualifying for the World Championships.
Long Jumper Ancy Sojan and Triple Jumper Abdulla Aboobacker gave Kerala the gold medals on the final day of the meet in Ranchi.
Ancy will have to repeat or better her performance at the final trials to be assured of a berth in the Hangzhou Games.
Ancy could manage only a best of 6.25m, which placed her 13th in the overall standings.
Dhanalakshmi ran a creditable sub-23 second, clocking 22.89s to better her earlier personal best of 23.14s she had come up last year.
Ancy won the under-20 200m gold with a time of 24.51 seconds.
The teenager from Nattika, who recently broke the national Under-21 long jump record with an effort of 6.36 metres at the Khelo India Youth Games in New Delhi, has the potential to land India a medal at the U-20 Worlds.