| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Conquest vs Sundararajan |
| ½-½ | 51 |
1999 |
Ch Great Britain, Scarborough (England) | B17 Caro-Kann, Steinitz Variation |
| 2. J Gallagher vs Sundararajan |
| 1-0 | 25 |
1999 |
Ch Great Britain, Scarborough (England) | B17 Caro-Kann, Steinitz Variation |
| 3. P Thipsay vs Sundararajan |
| ½-½ | 43 |
1999 |
Ch Great Britain, Scarborough (England) | B17 Caro-Kann, Steinitz Variation |
| 4. S Satyapragyan vs Sundararajan |
| 1-0 | 65 |
2000 |
Goodricke Open | B12 Caro-Kann Defense |
| 5. Z Varga vs Sundararajan |
| 1-0 | 32 |
2001 |
FSGM August | B10 Caro-Kann |
| 6. M Al Sayed vs Sundararajan |
| ½-½ | 43 |
2001 |
Asian U20 | B17 Caro-Kann, Steinitz Variation |
| 7. G Mooses vs Sundararajan |
| ½-½ | 54 |
2001 |
Asian U20 | B13 Caro-Kann, Exchange |
| 8. A Simutowe vs Sundararajan |
| ½-½ | 61 |
2002 |
41st World Junior Championships | B14 Caro-Kann, Panov-Botvinnik Attack |
| 9. Sasikiran vs Sundararajan |
 | ½-½ | 30 |
2003 |
Indian Championships | B18 Caro-Kann, Classical |
| 10. Sadvakasov vs Sundararajan |
| ½-½ | 53 |
2005 |
Asian Chess Championship | B17 Caro-Kann, Steinitz Variation |
| 11. S Roy vs Sundararajan |
| 1-0 | 26 |
2006 |
4 th Parsvnath Intl Chess Tmt - | B12 Caro-Kann Defense |
| 12. T S Ravi vs Sundararajan |
| ½-½ | 37 |
2006 |
4 th Parsvnath Intl Chess Tmt - | B16 Caro-Kann, Bronstein-Larsen Variation |
| 13. G B Joshi vs Sundararajan |
| ½-½ | 22 |
2008 |
Commonwealth Championship | B17 Caro-Kann, Steinitz Variation |
| 14. Ni Hua vs Sundararajan |
| 1-0 | 120 |
2009 |
4th Kolkata Open Grandmaster Chess Tournament | B17 Caro-Kann, Steinitz Variation |
