NirDhwani Technology Pvt Ltd.

07/10/2026

06/10/2026

Watch this presentation by Shivang Gupta, a third-year Chemical Engineering student at IIT Delhi, on detecting and mapping aquaculture fish farms in India’s coastal waters using satellite imagery and remote sensing.

The project explores how Sentinel-1 satellite data and Google Earth Engine can help address challenges such as cloud cover, coastal turbidity and the dispersed nature of small-scale farms.

By developing a geospatial dataset and open-source detection framework, the study aims to support Blue Economy planning, environmental management, food security, and evidence-based policymaking across key regions, including the Gulf of Mannar, Gulf of Kutch, Chilika Lake, and the Andaman coastal zones.

🎥 Watch the presentation to learn more about this innovative approach to mapping India’s aquaculture landscape.

Note: This presentation was part of our ‘World Oceans Day 2026’ webinar held in June 2026.

Arnab Das, Maritime Research Center, Ministry of Earth Sciences Government of India, Intergovernmental Oceanographic Commission (IOC) of UNESCO, UNESCO New Delhi Office.

25/09/2026

Did you know that the global community has prioritised Marine Spatial Planning ( ) as a critical tool for enhanced water body management?

Read this article entitled ‘ Implementation based on Modelling and Simulation (M&S), driven by Underwater Domain Awareness ( ) Framework,’ which was authored by our Director, Dr (Cdr) Arnab Das, to expand on how M&S-based can revolutionise the way we manage the challenges and opportunities of the new global order.

The article also notes that conventional , pushed by the developed world, is hardware-intensive and relies on extensive sensor deployment across the entire marine space. It further notes that the prohibitive cost of such hardware-intensive is limiting the Global South’s participation, which is already facing significant socio-economic and socio-political stress.

The article suggests that M&S-based , followed by field experimental validation, will be a game-changer for managing the challenges and opportunities of the new global order.

Read the full article now to understand how tropical waters’ unique characteristics can be mapped using high-end signal processing algorithms: https://t.ly/CXVGG

Important Note: Please log in with your credentials to read the full article.

NirDhwani Technology Pvt Ltd., Ministry of Earth Sciences Government of India, Intergovernmental Oceanographic Commission (IOC) of UNESCO, incoismoes, Ministry of Ports, Shipping and Waterways, International Maritime Organization - IMO.

18/09/2026

Did you know that every vessel in the ocean contributes to Underwater Radiated Noise ( ), yet much of this activity remains invisible beneath the surface?

The Shipping Radiated Noise ( ) Estimation Tool by NirDhwani Technology Pvt Ltd. uses AIS data, AI-enabled transmission-loss estimation and real-time visualisation to map and understand shipping-related underwater noise. This tool transforms underwater noise data into actionable insights for Underwater Domain Awareness ( ) by identifying acoustic hotspots and supporting smarter maritime environmental decisions.

📺Watch this video to understand more details about the Estimation Tool.

🔗 Explore the SRN Estimation Tool: https://t.ly/uP52-

Arnab Das, Ministry of Ports, Shipping and Waterways, Directorate General of Shipping, India, International Maritime Organization - IMO, incoismoes, Ministry of Earth Sciences Government of India, Ministry of Environment, Forest & Climate Change, Government of India.

09/09/2026

🎥 Watch the video to explore how simulation-based Marine Spatial Planning ( ) can enable smarter, safer and more sustainable governance.

This video presents our innovative Toolkit, which enables stakeholders to simulate and understand how our oceans respond to changing environmental, ecological, and human pressures. From Flood Risk, Oil Spill Drift and Blue Carbon to Marine Biodiversity, Coral Bleaching and Underwater Radiated Noise ( ), this toolkit brings data-driven “what-if” scenarios into marine planning.

Designed to support disaster authorities, the Coast Guard, coastal planners, fisheries departments, reef managers, the and regulators, the Toolkit helps turn complex data into actionable insights.

👉 Get more details about our work on through the following link: https://t.ly/ezgQ_

NirDhwani Technology Pvt Ltd., Maritime Research Center, Arnab Das, Ministry of Ports, Shipping and Waterways, Indian Navy, Ministry of Earth Sciences Government of India, incoismoes, Ministry of Environment, Forest & Climate Change, Government of India.

03/09/2026

NirDhwani Technology Pvt Ltd. is pleased to partner with World Trade Center - Pune to strengthen the Blue Economy ecosystem and explore new opportunities across the maritime, ocean-based and coastal sectors.

As part of the UNIDO - United Nations Industrial Development Organization– World Trade Centers Association Global Call for Blue Economy, this collaboration provides an opportunity to showcase and explore the potential of innovative, technology-driven solutions that contribute to sustainable development and the United Nations Sustainable Development Goals (SDGs) under the 2030 Agenda.

Through this partnership, NirDhwani Technology is bringing forward solutions across diverse domains, including:

🔹 Urban Flood Risk Prediction
🔹 Shipping Radiated Noise Assessment Toolkit
🔹 Acoustic Antifouling Toolkit for Ship Hulls
🔹 Submarine Cable Path Estimation Toolkit
🔹 Sediment Transport Modelling for Freshwater Systems

These solutions reflect our commitment to leveraging science, technology and innovation to address emerging challenges across the underwater, maritime and freshwater domains.

We look forward to working with WTC Pune, UNIDO and the wider Blue Economy ecosystem to build meaningful collaborations and accelerate the adoption of innovative solutions for a more sustainable and resilient future. 🌍🌊

📩 For collaboration opportunities: [email protected]

Arnab Das, International Maritime Organization - IMO, Ministry of Earth Sciences Government of India, Ministry of Environment, Forest & Climate Change, Government of India, Ministry of External Affairs, Government of India.

27/08/2026

Underwater Ambient Noise is a critical component of the ocean soundscape, with commercial emerging as a major contributor to low-frequency noise.

This research explores the design and development of Autonomous Underwater Vehicles ( ) as platforms for validating . By operating beneath the surface, can help overcome challenges associated with surface-wave interference and enable more effective, flexible acoustic data collection.

The study examines key aspects of AUV-based noise measurement, including hydrophone sensitivity, vehicle self-noise, calibration, acoustic modelling and data integration. The research further highlights the potential of emerging such as swarms and real-time visual SLAM to enhance data collection, navigation and monitoring.

At NirDhwani Technology Pvt Ltd., we are committed to advancing and supporting research that deepens understanding of the environment.

📖 Explore the research and discover how autonomous systems can contribute to the future of underwater acoustic monitoring. https://t.ly/VDt0P

Arnab Das, Ministry of Ports, Shipping and Waterways, Directorate General of Shipping, India, Ministry of Earth Sciences Government of India, International Maritime Organization - IMO, IIT Bombay.

15/08/2026

This , let us celebrate a nation that is not only free, but forward-looking, innovative, and future-ready.

At NirDhwani Technology Pvt Ltd., we believe that technological innovation is a powerful enabler of national progress, especially when it helps us better understand and manage our oceans.

Our work on the Marine Spatial Planning ( ) Tool reflects this vision. By bringing together diverse layers of underwater and maritime information, including AIS-based vessel traffic, , biodiversity, dynamics, and other parameters, the enables a more integrated, data-driven approach to planning and decision-making in our and spaces.

From supporting sustainable ocean development to strengthening governance and security, technology can help unlock the immense potential of its while safeguarding its for generations to come.

This , let us innovate for a stronger India, a smarter ocean, and a more secure future.

Arnab Das, Indian Navy, Ministry of Defence, Government of India, Ministry of External Affairs, Government of India, Ministry of Earth Sciences Government of India, International Maritime Organization - IMO, Intergovernmental Oceanographic Commission (IOC) of UNESCO, Ministry of Environment, Forest & Climate Change, Government of India.

14/08/2026

Did you know that marine biofouling significantly increases , operating costs, and gas emissions? This leads to making effective technologies essential for the shipping industry.

Read this latest publication on ‘Antifouling Techniques: History and Evolution of Marine Fouling Control,” which reviews the evolution of antifouling technology from traditional methods to modern, environmentally sustainable coating systems following the 2008 International Maritime Organization - IMO ban on TBT-based coatings. This research note was authored by Suchir Mamidala, our Research Fellow, who identified seven major technology platforms, including SPC coatings, fouling-release coatings, hydrogels, biomimetic surfaces, nanoparticle-based systems, natural biocides, and advanced chemical biocides.

“Antifouling technology reflects humanity’s competing imperatives: operational efficiency, environmental protection, regulatory compliance, and economic viability.”

Read the full paper and key findings through the following link: https://t.ly/fBO_s

Important Note: Please log in to view the complete research note on the Knowledge Center.

NirDhwani Technology Pvt Ltd., Maritime Research Center, Arnab Das, European Environment Agency, Ministry of Ports, Shipping and Waterways, Ministry of Earth Sciences Government of India.