Since 2022, Tamil Nadu has planted and restored over 2,900 hectares of the mangroves across nine coastal districts.
At the same time, 200 hectares of degraded mangroves were restored, particularly in Thiruvarur.
In the following year, 720 hectares of new plantations were added, along with the restoration of 732 hectares.
In 2024–25, an additional 275 hectares were planted, with more expected by the end of the year.
The State’s 1,076-kilometre coastline spans 14 districts.
In February 2023, the Department launched a three-year mangrove restoration scheme with an allocation of ₹25 crore.
Special focus has been given to reintroducing rare species like Sonneratia apetala, Xylocarpus granatum, and Kandelia candel, which had largely disappeared from the region.
Alongside mangroves, bio-shield plantations using trees such as casuarina, palmyrah, and cashew have been introduced to protect against wind and wave action.
The mangrove plantation efforts were undertaken as part of Tamil Nadu Biodiversity Conservation and Greening Project for Climate Change Response (TBGPCCR), the Compensatory Afforestation Fund Management and Planning Authority (CAMPA), the Chennai River Restoration Trust (CRRT), and other centrally sponsored schemes.