Former National champion Sridhar shocked his rival Sourabh Varma, ranked one place below him in the tournament, with his calculated aggression to chalk up a hard-fought 21-18, 8-21, 21-14 win in an hour.
Tanvi, on the other hand, evaporated the hopes of Rituparna Das into thin air by smacking her out of the title race with 21-17, 21-19 win in straight sets.
Sridhar, seeded second, began the campaign taking initial lead in the closely fought battle in the first game. Varma fought back and brought the game closer only to lose the nerve-wracking first game 18-21.
Having equalised the rubber, Varma had great chance to race ahead of Sridhar during the decider, but spilled it after he gave ample opportunity to his opponent to pocket the deciding set 21-14.
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In women's singles final, Tanvi kept breathing down the neck of Rituparna, who gave a tough fight, before the third seed cliched the first game 21-17.
Tanvi played some delectable shots across the court, dismantling the confidence of Rituparna, who gave her opponent a hot chase.