Shamini won the women's singles crown 4-0 in a one-sided final against Poulomi Ghatak to pocket a prize money of Rs 58,000.
Before her singles title triumph, Shamini had claimed the women's doubles title, combining with Madhurika Patkar.
Both men's and women's singles finals saw the PSPB team-mates competing against each other but it was Bharat Petroleum's Ghosh who won the honours and a winner's purse of Rs 75,000.
Amalraj, showing occasional brilliance, struggled against an expressive Ghosh who kept indulging his opponent. In the decider, Ghosh just allowed Amalraj six points to wrap it up quickly at the District Indoor Hall.
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"I had a nice rhythm going and I cashed in on it. After winning the third game, I grew in confidence," said Ghosh.
As for the Shamini-Poulomi final, the national champion did not have to sweat it out much.
"I played really good. I kept attacking and it paid dividends," said Shamini.
The men's doubles title went to Sourav Saha and G Sathiyan while Shamini and Patkar combined to blank their PSPB counterparts Ankita Das and Reeth Rishya 3-0.
Results: Men (Final): Soumyajit Ghosh bt Anthony Amalraj 4-1 (11-9, 5-11, 11-9, 11-9, 11-6); Doubles (Final): Sourav Saha/G Sathiyan bt Jubin Kumar/ A Amalraj 3-1 (8-11, 11-8, 12-10, 12-10). Women (Final): K Shamini bt Poulomi Ghatak 4-0 (11-7, 11-1, 11-8, 11-2); Doubles (Final): K Shamini/Madhurika Patkar bt Ankita Das/Reeth Rishya 3-0 (11-9, 11-5, 11-5).