Arun Krishnamurthy, Project area: India, Restore urban lakes in India. The centuries-old Moosi Rani Sagar stepwell was built to be as close to the water table as possible & supplied the local region with water for a multitude of uses. Arun Krishnamurthy's EFI organisation is currently restoring the well and multiple surrounding channels, wells and check-dams, using traditional & modern techniques.

Arun Krishnamurthy, Project area: India, Restore urban lakes in India. A portrait of Krishnamurthy at Thalli Pond, Chennai.

Arun Krishnamurthy, Project area: India, Restore urban lakes in India. Sunrise over the pinnacled domes of the Moosi Rani Sagar. This centuries-old stepwell was built to be as close to the water table as possible & supplied the local region with water for a multitude of uses. Arun Krishnamurthy's EFI organisation is restoring the well and multiple surrounding channels, wells and check-dams, using traditional & modern techniques.

Arun Krishnamurthy, Project area: India, Restore urban lakes in India. The centuries-old Moosi Rani Sagar stepwell was built to be as close to the water table as possible & supplied the local region with water for a multitude of uses. Arun Krishnamurthy's EFI organisation is restoring the well and multiple surrounding channels, wells and check-dams, using traditional & modern techniques.

Arun Krishnamurthy, Project area: India, Restore urban lakes in India. Krishnamurthy documents water plants at the centuries-old Moosi Rani Sagar stepwell which was built to be as close to the water table as possible & supplied the local region with water for a multitude of uses. Arun Krishnamurthy's EFI organisation is curently restoring the well and multiple surrounding channels, wells and check-dams, using traditional & modern techniques.

Arun Krishnamurthy, Project area: India, Restore urban lakes in India. Krishnamurthy and EFI team members fly a drone to obtain an overview of the conditions at the EFI-restored Morai Lake. The EFI foundation utilises a variety of digital & analogue tools to gather data for research & restoration purposes.

Arun Krishnamurthy, Project area: India, Restore urban lakes in India. The centuries-old Moosi Rani Sagar stepwell was built to be as close to the water table as possible & supplied the local region with water for a multitude of uses. Arun Krishnamurthy's EFI organisation is restoring the well and multiple surrounding channels, wells and check-dams, using traditional & modern techniques.

Arun Krishnamurthy, Project area: India, Restore urban lakes in India. Local residents use water from the Moosi Rani Sagar. This centuries-old stepwell was built to be as close to the water table as possible & supplied the local region with water for a multitude of uses. Arun Krishnamurthy's EFI organisation is restoring the well and multiple surrounding channels, wells and check-dams, using traditional & modern techniques.

Arun Krishnamurthy, Project area: India, Restore urban lakes in India. A busy street market in Mylapore, Chennai.

Rohan Pethiyagoda, Project Area: Sri Lanka. R. P. at the Horton Plains National Park. The 2000 Rolex Laureate's reseach in the region has contributed to the preservation of the park which is within the Sri Lankan Central Highlands World Heritage Site.

Rohan Pethiyagoda, Project area: Sri Lanka. An aerial view of the bungalow at the Agarapathana forest restoration project

Rohan Pethiyagoda, Project Area: Sri Lanka. Agarapathana forest restoration project: Ecological Survey & Monitoring

Rohan Pethiyagoda, Project Area: Sri Lanka. Agarapathana forest restoration project.. Ecological Survey & Monitoring

Rohan Pethiyagoda, Project Area: Sri Lanka. Inspection of a Green shrub frog, Pseudophilautus femoralis in the wild.

Rohan Pethiyagoda, Project Area: Sri Lanka. Research conducted at Agarapathana with regards to reforestation & restoration will be used to in part support the initiative to incorporate the Udaveriya (abandoned tea) estate into the Horton Plains National Park. This will be the first time the Government of Sri Lanka is trying a national reforestation project.

Rohan Pethiyagoda, Project Area: Sri Lanka. 'Sambar deer' - Rusa unicolor at the Horton Plains National Park. The 2000 Rolex Laureate's reseach in the region has contributed to the conservation efforts of such species within the park which is a part of the Sri Lankan Central Highlands World Heritage Site.

Piyush Tewari, Project area: India, establish a network to ensure rapid medical care to road accident victims in Delhi, India Here, Tewari inspects recent work at Rajghat Intersection

Piyush Tewari, Project area: India, establish a network to ensure rapid medical care to road accident victims along the Mumbai-Pune expressway, India

Piyush Tewari, Project area: India, establish a network to ensure rapid medical care to road accident victims along the Mumbai-Pune expressway, India

Piyush Tewari, Project area: India, establish a network to ensure rapid medical care to road accident victims along the Mumbai-Pune expressway, India

Piyush Tewari, Project area: India, establish a network to ensure rapid medical care to road accident victims along the Mumbai-Pune expressway, India SaveLife Foundation Highway Patrol Vehicles

Piyush Tewari, Project area: India, establish a network to ensure rapid medical care to road accident victims along the Mumbai-Pune expressway, India A busy street along Mumbai's Marine Drive