Ravikumar, the 28-year old hotelier from Chennai, running third behind the two front-running TVS Racing team's Jagan and Harry Sylvester, bided his time before slipping past both on the last of the 10-lap race to score a deserving victory.
Jagan, who lost fractions after making contact with Ravikumar during the overtaking move, came in second ahead of Sylvester.
In the Stock 165 class race that was also decided on the finish line, local lad Anthony Peter (RMC Racing) nosed ahead of Hubli's Anish Damodara Shetty (United Tech Torque). The duo traded places at the front of the 30-strong grid until Peter managed to pip Shetty while Chennai's PR Soorya (Team Speed Up) was a distant third.
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The results (Provisional): National Championship:
Super Sport Indian - Race 1 (10 laps): 1. Deepak Ravikumar (Rajni Academy for Competitive Racing) (12 mins, 48.383 secs); 2. K Jagan (TVS Racing) (12:48.848); 3. Harry Sylvester (TVS Racing) (12:49.099).
Stock 165 - Race 1 (10 laps): 1.Antony Peter E (RMC Racing) (14:24.545); 2.Anish Damodara Shetty (United Tech Torque Racing) (14:24.547); 3.PM Soorya (Team Speed Up) (14:39.013).
MMSC One-Make Championship: MMSC-TVS Apache RTR 200 (Open) - Race 1 (10 laps): 1.Kannan S (Chennai) (14:03.835); 2. Arvind Ganesh R (Chennai) (14:27.616); 3.Rahil Peerzade (Kalyan) (14:38.669).
Suzuki Gixxer Cup (Novice) - Race 1 (6 laps): 1.Aron (Sri Lanka) (09:03.050); 2.Joseph P Mathew (Chennai) (09:08.852); 3.Amarnath Rajan (Channai) (09:17.098).
Honda Ladies Race (5 laps): 1.Pooja Ajit Dabhi (Pune) (08:03.969); 2.Shruthi N (Chennai) 08:04.529; 3.A Rhyhane Bee (Chennai) (08:10.097).