| Sl No. | Firm Name | Class | Applied for | Final Cert No | Issue Dt | Valid From | Valid Upto |
|---|---|---|---|---|---|---|---|
| 1 | M/S-Sanat Kumar Mukherjee | Class I | Recognition | WB/REPAIR-FINAL/2021/208 | 2021-08-25 | 2021-08-25 | 2023-08-24 |
| 2 | M/S-Sanat Kumar Mukherjee | Class I | Recognition | WB/REPAIR-FINAL/2023/235 | 2023-09-11 | 2023-09-11 | 2025-09-10 |
| 3 | M/S-Sanat Kumar Mukherjee | Class I | Recognition | WB/REPAIR-FINAL/2025/281 | 2025-10-14 | 2025-10-14 | 2027-10-13 |
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