Initiative / Scheme
‘Nalam TN’ Portal
- Background: The Government of Tamil Nadu launched an integrated digital platform named ‘Nalam TN’ in Chennai on July 14, 2026. The portal was inaugurated by the Chief Minister of Tamil Nadu at an event held at Presidency College, Chennai, under the aegis of the State Health and Family Welfare Department.
About the ‘Nalam TN’ Portal
- ‘Nalam TN’ serves as a unified web portal for government health services in Tamil Nadu.
- It consolidates various health services for patients, government hospitals, and public institutions into a single platform.
- The portal also features a transparent and monitored system that enables individuals and organizations to make direct donations to government hospitals.
Digital Health Services in Tamil Nadu
- The Government of Tamil Nadu is expanding the use of digital technology in the public health sector.
- In July 2026, the state government introduced ‘Nalam AI’, a WhatsApp-based chatbot service.
- ‘Nalam AI’ assists the public in booking appointments for outpatient department (OPD) treatments; this service is available across several districts in Tamil Nadu.
- The ‘Nalam TN’ portal further strengthens the state’s digital health ecosystem by offering additional online health services.
Health Infrastructure and Appointments
- Alongside the launch of this portal, the government inaugurated health projects worth ₹139 crore.
- These projects are being implemented across government medical college hospitals, district hospitals, and primary health centers throughout Tamil Nadu.
History & Culture
Discovery of an Ancient Brick Step-well in Karivalamvandanallur, Tamil Nadu
- Context: The Tamil Nadu State Department of Archaeology has discovered a square-shaped brick step-well (measuring 4m × 4m) in Karivalamvandanallur, near Tenkasi.
- It is believed to date back to the Sangam period (approximately 2,500 years old).
- Archaeologists consider this to be the first brick step-well from the Early Historic (Sangam) period discovered in Tamil Nadu.
Significance of the Discovery
- This step-well serves as evidence of the advanced water management practices followed by the people of the Sangam era.
- It showcases the engineering and planning capabilities of ancient Tamil society.
Historical Significance of the Site
- The site is located on an ancient trade route connecting Madurai to the west coast via the Sengottai Pass.
- Roman gold coins were discovered here in the 1930s, indicating the site’s role in ancient trade.
Features of the Step-well
- The well measures 4 meters by 4 meters.
- It features stone steps for descending into the well.
- The walls are constructed of brick, while the steps are made of stone.
- The bricks measure 40 cm × 20 cm × 7 cm; they resemble bricks found at sites like Keeladi, Alagankulam, and Poompuhar.
- The walls were built using an interlocking technique with clay mortar for added stability.
Evidence of Water Management
- Water marks visible on the inner walls indicate that the groundwater level was once higher.
- Excavation has been carried out to a depth of 2 meters; Its full depth will be revealed upon further excavation.
- This stepwell was constructed over an ancient river course; it may have served as a water source during the summer.
Discovery of a Burial Urn
- Archaeologists discovered a pot featuring a red slip finish, decorated with peacock motifs and covered with a lid.
- This pot is believed to date back to the Iron Age. Nearby finds—including molars and premolars, along with black-and-red ware pottery—suggest that this site may have been a burial ground.
- ncised markings were observed on several of the pots.
Discovery of High-Tin Bronze
- A fragment of high-tin bronze was also discovered.
- Karivalamvandanallur is the sixth archaeological site in Tamil Nadu where high-tin bronze has been found.
- Other sites include: Adichanallur, Sivakalai, Sasthapuram, Thirumalaipuram, and Sulapuram.
Evidence of Iron Production
- Archaeologists discovered iron slag and hematite iron ore.
- These findings indicate that the site may have once served as a center for iron production.
- The settlement appears to have evolved continuously from the Microlithic period through the Iron Age and into the Early Sangam period.
Environment and ecology
Gulf of Mannar
- Context: A recent study (peer-reviewed) has found a significant decline in bird populations in the Gulf of Mannar over the past 40 years.
- The study indicates that the population of shorebirds has decreased by approximately 57%.
About the Gulf of Mannar
- The Gulf of Mannar is a shallow bay that forms part of the Laccadive Sea in the Indian Ocean.
- It is situated between southeastern India and western Sri Lanka.
- The gulf spans approximately 160 km in length and ranges from 130 km to 275 km in width.
- Its northeastern boundary is defined by Rameswaram Island, Adam’s Bridge (or Rama’s Bridge—a chain of sandbanks), and Mannar Island.
- It is connected to the Palk Bay via the Palk Strait.
- Several rivers, including India’s Thamirabarani River and Sri Lanka’s Aruvi Aru, drain into this gulf.
- The Tuticorin (Thoothukudi) port is located on the Indian coast of this gulf.
- The Gulf of Mannar is renowned for its pearl oyster beds and sacred conch species.
Biodiversity of the Gulf of Mannar
- The gulf hosts three major coastal ecosystems:
- Coral reefs
- Seagrass beds
- Mangrove forests
- Due to the presence of these ecosystems, it stands as one of the world’s richest regions for marine biodiversity.
- More than 4,223 species of flora and fauna have been recorded here.
- Marine life such as sea turtles, sharks, dugongs (sea cows), and dolphins are commonly found here.
- Approximately 117 species of hard corals have also been identified in this area.
Conservation Status
- To protect its rich marine biodiversity, the area was declared the ‘Gulf of Mannar National Park’ in 1986.
- In 1989, it was designated as the ‘Gulf of Mannar Biosphere Reserve,’ making it the first marine biosphere reserve in both India and South Asia.

