 World: Davis Cup - World Group I - Doubles - Main |
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| | Bergevi F./Goransson A. | Balaji N. S./Ramanathan R. | 2:0 (6:3, 6:4) | details | 15.09.2024 |
 Spain: Mallorca - Doubles - Main |
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| Final | Balaji N. S./Ramanathan R. | Cukierman D./Paris J. | 0:2 (4:6, 4:6) | details | 02.09.2023 |
| Semi-finals | Arribage T./Sanchez L. | Balaji N. S./Ramanathan R. | 0:2 (4:6, 4:6) | details | 01.09.2023 |
| Quarter-finals | Balaji N. S./Ramanathan R. | Barrios Vera T./Mejia N. | 2:0 (6:2, 7:5) | details | 30.08.2023 |
| 1/8-finals | Balaji N. S./Ramanathan R. | Lokoli L./Ritschard A. | 2:0 (6:2, 6:2) | details | 29.08.2023 |
 Switzerland: Biel - Doubles - Main |
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| Semi-finals | Cornea V. V./Skugor F. | Balaji N. S./Ramanathan R. | 2:0 (7:5, 6:3) | details | 24.03.2023 |
| Quarter-finals | Balaji N. S./Ramanathan R. | Gengel M./Nouza P. | 2:0 (7:66, 6:2) | details | 23.03.2023 |
| 1/8-finals | Balaji N. S./Ramanathan R. | Brunold M./Dietrich D. | 2:0 (6:1, 6:2) | details | 21.03.2023 |
| Spain: Alicante - Doubles - Main |
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| 1/8-finals | Gojo B./Zuk K. | Balaji N. S./Ramanathan R. | 2:0 (6:4, 6:3) | details | 12.10.2021 |
| Spain: Murcia - Doubles - Main |
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| Semi-finals | Balaji N. S./Ramanathan R. | Barroso Campos A./Carballes Baena R. | 0:2 (5:7, 66:7) | details | 30.09.2021 |
| Quarter-finals | Balaji N. S./Ramanathan R. | Galoppini D./Passaro F. | 2:0 (7:65, 6:3) | details | 29.09.2021 |
 France: Cassis - Doubles - Main |
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| Final | Balaji N. S./Ramanathan R. | Hach Verdugo H./Reyes-Varela M. A. | 2:1 (6:4, 3:6, 10:6) | details | 11.09.2021 |
| Semi-finals | Escobedo E./Romboli F. | Balaji N. S./Ramanathan R. | 0:2 (3:6, 2:6) | details | 10.09.2021 |
| Quarter-finals | Balaji N. S./Ramanathan R. | Celikbilek A./Safiullin R. | WO. | details | 09.09.2021 |
| Spain: Mallorca - Doubles - Main |
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| Semi-finals | Balaji N. S./Ramanathan R. | Romboli F./Zielinski J. | 0:2 (2:6, 62:7) | details | 03.09.2021 |
 Italy: Biella 7 - Doubles - Main |
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| Semi-finals | Balaji N. S./Ramanathan R. | Martinez L. D./Vega Hernandez D. | 0:2 (2:6, 4:6) | details | 04.06.2021 |
| Quarter-finals | Berrettini J./Cobolli F. | Balaji N. S./Ramanathan R. | 0:2 (69:7, 5:7) | details | 03.06.2021 |
| 1/8-finals | Bortolotti M./Vanni L. | Balaji N. S./Ramanathan R. | 0:2 (1:6, 67:7) | details | 01.06.2021 |
 Croatia: Zagreb - Doubles - Main |
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| 1/8-finals | Jebavy R./Martin A. | Balaji N. S./Ramanathan R. | 2:1 (66:7, 7:612, 11:9) | details | 11.05.2021 |
 India: Chennai - Doubles - Main |
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| Quarter-finals | Devvarman S./Nedunchezhiyan J. | Balaji N. S./Ramanathan R. | 2:1 (6:4, 1:6, 10:6) | details | 08.01.2016 |
| 1/8-finals | Balaji N. S./Ramanathan R. | Daniell M./Sitak A. | 2:1 (2:6, 7:65, 10:5) | details | 06.01.2016 |
| 1/8-finals | Balaji N. S./Ramanathan R. | Marach O./Martin F. | CAN. | details | 05.01.2016 |
| India: Chennai - Doubles - Main |
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| Quarter-finals | Balaji N. S./Ramanathan R. | Draganja M./Pavic M. | 0:2 (3:6, 3:6) | details | 03.01.2014 |
| 1/8-finals | Balaji N. S./Ramanathan R. | Lipsky S./Ram R. | 2:0 (7:5, 6:3) | details | 01.01.2014 |
