Samresh, representing CISF in the championship, shot 576 points to bag the gold. Rajasthan's Mahaveer Singh won the silver with 569 while Vijay of Army had to be satisfied with bronze on 566 points.
Another international medallist Jaspal Rana of Delhi scored 561 points in the event.
In the junior category of 25 standard pistol, Sunil Gurung of Army clinched the gold with 554 points, ONGC's Ajitesh Kaushal scored 552 to claim the silver, while Neeraj Kumar of Army bagged the bronze medal with a score of 547.
The 2008 Olympics gold medallist Abhinav Bindra will participate in 10m air rifle event on Sunday.
Image: Samresh Jung
EPL PHOTOS: Suarez shines again as Liverpool surge top
The Top 10 Sporting Breakthroughs in 2013
Sindhu the new star as Saina endures title drought
2013 belonged to Nadal, Serena while Murray ended British wait
Carnival, World Cup could hit Brazil growth in 2014