City girl M R Poovamma of ONGC won her fourth straight title in women's 400m, clocking 53.41 secs to join the national squad for the Asian championships to be held at Wuhan, China next month.
In the men's 400m race, Incheon Asiad bronze medalist Rajiv Arokia made the cut with a time of 46.24 secs.
Odisha sprinter Srabani Nanda, who underwent brief training stints in Australia and South Africa in recent years, made it a double as she annexed the 200m gold this evening by posting a personal best 23.67 secs.
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Haryana's Dharambir, who won a sprint double in the National Games earlier this year, had a disappointing outing in the 100m heats on the opening day due to a slippery starting block.
However, Dharambir managed to come back with a triumph in 200m and qualified for the Wuhan squad with a personal best timing of 20.87 secs. Defending champion Manikanda Arumugam of Tamil Nadu settled with a silver in 21.20 secs.
Army man Jinson Johnson also made a double as he added the 1500m gold to his 800m victory earlier.
Earlier in the morning, long distance runners Suriya Loganathan (Tamil Nadu) and G Lakshmanan (Army) completed a double each by taking the titles in their respective groups in 10,000m.
Suriya and Lakshmanan clocked 34:42.05 and 29:49.91 respectively for today's golden effort to add it to their victories in 5,000m on the opening day.
The top three women in 100m hurdles have dipped under the qualifying norm of 14.07 secs for the Asians.
TN girl Gayathry Govindaraj clocked 13.67 secs, third best time in career, to win the gold, while teammate Deepika Parasuraman (20) improved her personal best timing to 13.76 secs to join her "akka" for the China trip.
Karnataka's Meghana Shetty (19) also bettered her previous best with 13.88 secs for the bronze.
National record-holder Siddhant Thingalaya (ONGC) made it four in a row to win the men's 110m hurdles. Siddhant, who made the Wuhan grade with 13.82 secs during the heats, ran a much relaxed 13.92s in the finals.