In April 2010, Saptarshi tied for 3rd–6th with Vladimir Malaniuk, David Smerdon, and Magesh Chandran Panchanathan in the Doeberl Cup in Canberra.
[2] In May 2023, Saptarshi tied for first place with Neelash Saha, Kushagra Mohan, and Chakravarthi Reddy M in the Late Bharatbai Halkude Memorial Chess Festival 7th Rating Open.
He lost the win to Neelash after tiebreaks, but remained undefeated throughout the event.
[3] In December 2023, Saptarshi was a joint leader after the second round of the 1st Marvel All India Open.
[4] He remained undefeated and ultimately finished in second place with a score of 7.5/9, behind winner Bharat Kumar Reddy Poluri.