I couldn’t find a **specific, verified** plantation service in Mainpuri explicitly advertising “Sagwan (teak) plant plantation.”

Here’s what I found, and how you might proceed:

### ✅ What *is* available

* There are nurseries and suppliers of sagwan/teak plants in the broader region (Uttar Pradesh) — for example, in Lucknow. ([TradeIndia][1])
* Information on how sagwan plantations are done (soil, climate, spacing, etc). ([Jag Dev Group][2])
* A listing for “वृक्षारोपण सेवा – मैनपुरी” (tree‑plantation service in Mainpuri) on Justdial, though it does *not* clearly list sagwan specifically. ([Justdial][3])

Teak plants in Hasanpur
Teak plants in Hasanpur

### 📝 What you need to check if you proceed

* **Specify sagwan/teak**: When contacting a supplier or service, verify they offer sagwan plants/species (Tectona grandis).
* **Nursery/source reliability**: Ensure the plants are healthy, from a good source, and the species is true.
* **Suitability for your land**: Sagwan requires well‑drained deep soil, decent rainfall (or irrigation), full sun etc. ([Jag Dev Group][2])
* **Spacing & long term management**: Teak takes many years to mature; you’ll need to plan spacing, maintenance, guarding (against grazing/herbivores), etc.
* **Local availability and cost**: Because Mainpuri might not have a large dedicated sagwan nursery, you might need to source from nearby districts.
* **Permissions (if required)**: If this is for large scale plantation, or on community/government land, check any local forest or land‑use rules.