| Sl. No. | District | Laboratory | NABL Status |
|---|---|---|---|
| 1 | Howrah | Anandaniketan Sub-District Laboratory | Recognized |
| 2 | Howrah | Gandalpara Nabin Pragati Seva Samity Sub-District Laboratory | Recognized |
| 3 | Howrah | Howrah District Water Testing Laboratory | Accredited |
| 4 | Howrah | Ranapara Gram Bikash Kendra Sub-District Laboratory | Recognized |
| 5 | Howrah | Silampur Sub-District Laboratory | Recognized |
