NirDhwani Technology Pvt Ltd., Maritime Research Center, Koregaon Bhima, Pune (2026)

16/05/2026

This is Part 2 of our previous post on the field experiment at Khadakwasla Lake, conducted in October 2017. Core research highlights of our field experiment included:

🔹Acoustic Propagation, which is crucial for accurate sonar operations
🔹Sound Speed Profile, which is important for enhancing the precision of acoustic measurements
🔹Sediment Classification for detailed analysis and classification of the lakebed sediments

The initiative focused on developing sonar-based sediment classification methodologies, building datasets for future research, and supporting sustainable water management strategies.

At NirDhwani Technology Pvt Ltd., we are committed to leveraging science, sonar technology, and data-driven insights to build practical solutions for sustainable and strategic decision making.

Read more through the following link here: https://www.nirdhwani.in/khadakwasla

Arnab Das, Intergovernmental Oceanographic Commission (IOC) of UNESCO, Ministry of Earth Sciences Government of India, Ministry of Environment, Forest & Climate Change, Government of India, incoismoes.

11/05/2026

On the occasion of India’s National Technology Day 2026, we at NirDhwani Technology Pvt Ltd. celebrate the role of and indigenous in shaping the future of the and domains.

At Nirdhwani, we are actively developing an integrated Marine Spatial Planning (MSP) Toolkit for the tropical waters of the Indo-Pacific strategic space. This toolkit aims to bring together oceanographic intelligence, underwater acoustics, environmental data, and maritime stakeholder requirements into a unified decision-support system. This initiative has the potential to transform underwater planning, monitoring, and resource management by enabling informed, data-driven maritime decision-making across security, sustainability, blue economy, fisheries, and coastal infrastructure sectors.

On this National Technology Day, we reaffirm our commitment to building scalable, impactful technologies that strengthen maritime resilience and advance sustainable ocean governance.

Maritime Research Center, Arnab Das, Ministry of Electronics & Information Technology, Government of India, Ministry of External Affairs, Government of India, Ministry of Earth Sciences Government of India, Ministry of Environment, Forest & Climate Change, Government of India, Intergovernmental Oceanographic Commission (IOC) of UNESCO.

09/05/2026

In October 2017, we conducted a field experiment at the Khadakwasla Lake with over 25 researchers, scholars and young professionals to advance research in underwater acoustics and sediment classification.

Particpants carried out real-time experiments using Side Scan Sonar and Sub-Bottom Profilers to map underwater parameters and study sediment layers in tropical freshwater conditions. The initiative focussed on developing sonar-based sediment classification methologies, building datasets for future research, and supporting sustainable water management strategies. The core findings from this initiative continue to contribute towards a deeper understanding of underwater dynamics, enviornmental conservation, and startegic decision-making in water resource management.

At NirDhwani Technology Pvt Ltd., we are committed to leveraging science, sonar technology, and data-driven insights to build practical solutions for sustainable and strategic decision making. Read more through the following link here: https://www.nirdhwani.in/khadakwasla

Arnab Das, Intergovernmental Oceanographic Commission (IOC) of UNESCO, Ministry of Earth Sciences Government of India, Ministry of Environment, Forest & Climate Change, Government of India, incoismoes.

02/05/2026

As ocean conditions shift and fish stocks move farther offshore, the need for informed, data-driven fishing practices is becoming increasingly critical.

Tools like Potential Fishing Zone ( ) platforms are helping to reduce uncertainty, improve efficiency, and support more sustainable use of marine resources. Their value lies not just in improving catch efficiency, but in supporting a more sustainable relationship with marine ecosystems.

At NirDhwani Technology Pvt Ltd., we are working to strengthen these capabilities by building data-driven models and web-based applications that account for dynamic conditions. By translating complex data into practical insights, such tools can enable more informed, timely, and sustainable decisions at sea.

As we move forward, the focus must remain on combining , environmental intelligence, and needs to build resilience across the fisheries sector.

🔗 Explore more: www.nirdhwani.in
📲 Read the article: [https://t.ly/qIT5f]

Arnab Das, Ministry of Fisheries, Animal Husbandry and Dairying, Ministry of Earth Sciences Government of India.

25/04/2026

🌊 Did You Know?

In India, where fishing supports millions of livelihoods and contributes nearly 8% to global fish production, Potential Fishing Zone (PFZ) advisories are already transforming the sector—reducing search time by up to 70%.

Building on this impact, our model and web application aim to make these insights even more accessible, visual, and actionable for stakeholders across the ecosystem.

Our UDA Digest article walks you through how the web application translates complex ocean data into a simple, interactive map and highlights premium fishing zones, supporting both fisherfolk and policymakers in informed decision-making.

🔗 Explore more: www.nirdhwani.in
📲 Read the article: [https://t.ly/qIT5f]

Arnab Das, NirDhwani Technology Pvt Ltd., Ministry of Fisheries, Animal Husbandry and Dairying, Ministry of Earth Sciences Government of India.

15/04/2026

We were delighted to be joined by a distinguished delegation from the Indian Navy, with participation both in person and online. This meeting was led by our Founder and Director, Dr (Cdr) Arnab Das.

Key areas of engagement included advancements in Marine Spatial Planning ( ), aimed at enabling more integrated and data-driven ocean governance; Underwater Radiated Noise ( ) Management, addressing the growing need to balance maritime activity with ecological sustainability; and the development of a Passive Sonar Simulator, which has significant applications in capacity building, training, and operational preparedness.

The interaction provided a valuable platform to exchange perspectives, align on emerging challenges, and explore avenues for future , particularly to strengthen Underwater Domain Awareness ( ) and support sustainable operations.

NirDhwani Technology Pvt Ltd., Ministry of Ports, Shipping and Waterways, Ministry of Earth Sciences Government of India, Ministry of Environment, Forest & Climate Change, Government of India.

11/04/2026

Did you know that to operationalise Marine Spatial Planning ( ), the Government of India, in collaboration with Norway’s Ministry of Foreign Affairs, launched pilot projects in Puducherry and Lakshadweep in 2021? It was intended to build local capacity and integrate , , and data to support sustainable decision-making.

Preliminary results have underscored the potential of multi-stakeholder engagement and technology adoption to guide coastal and offshore developments. plays an important role in enabling this transition from sectoral planning to a holistic, data-driven ocean governance paradigm.

At NirDhwani Technology Pvt. Ltd., we are working to bridge this gap through our Toolkit, a unified, simulation-driven platform that integrates diverse real-time ocean data streams to support informed decision-making.

Please read the paper on ‘Modelling & Simulation Driven Marine Spatial Planning ( ) for Sustainable Governance in the Indian Ocean Region,’ (Page 119-144) published in ICWA special publication.
https://icwa.in/pdfs/UnderwaterDomainAwarenessAug2025Web.pdf )

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

05/04/2026

Celebrating the National Maritime Day 2026!

Effective maritime governance today demands the ability to anticipate consequences before they become crises. For a long time, India’s ocean and coastal decision-making has operated through fragmented systems, where shipping, fisheries, conservation, and infrastructure are managed in silos, often leading to unintended environmental and socio-economic impacts.

At NirDhwani Technology Pvt Ltd., we are working to bridge this gap through our Marine Spatial Planning (MSP) Toolkit, a unified, simulation-driven platform that integrates diverse real-time ocean data streams to support informed decision-making.

By enabling planners to model the downstream impacts of actions, whether it is a new shipping corridor, dredging activity, or climate-driven changes, the MSP Toolkit helps shift governance from reactive to proactive.

To understand more about how MSP is the right tool for effective Maritime Governance, please read the paper on ‘Modelling & Simulation Driven Marine Spatial Planning (MSP) for Sustainable Governance in the Indian Ocean Region,’ (Page 119-144) published in ICWA New Delhi special publication. (https://icwa.in/pdfs/UnderwaterDomainAwarenessAug2025Web.pdf)

Arnab Das, Ministry of Ports, Shipping and Waterways, Ministry of Earth Sciences Government of India, Ministry of Jal Shakti, Department of Water Resources, RD & GR, Ministry of Environment, Forest & Climate Change, Government of India, International Maritime Organization - IMO, Intergovernmental Oceanographic Commission (IOC) of UNESCO.

01/04/2026

We are pleased to share the Quarter 1–2026 Newsletter of the Maritime Research Center.

The first quarter of 2026 has been a period of significant progress and impactful engagements for us. During this time, we successfully conducted a 5-day Underwater Domain Awareness (UDA) Workshop for 21 Indian Forest Service (IFS) Officers and delivered six one-day UDA Skilling Programmes, training 300 young professionals and college students in critical UDA aspects. We also actively participated in several international conferences, contributing to the broader global discourse in the maritime domain.

In addition, we had the opportunity to host over 15 distinguished experts through our webinars and workshops, who shared valuable insights on a wide range of themes, including River Governance, Biofouling Management, and Digital Transformation.

We invite you to explore the full newsletter to learn more about our initiatives, achievements, and key takeaways from the quarter.

📖 Read the full newsletter here: [https://t.ly/anevX]

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

27/03/2026

In today’s rapidly evolving maritime landscape, Noise & Vibration (N&V) management is no longer a niche engineering function; it has become central to operational efficiency and sustainability, and safety at sea. At NirDhwani Technology Pvt Ltd., we recognise the growing importance of N&V studies across marine platforms, spanning multiple critical applications:

🔹Crew Comfort & Habitability
🔹Underwater Noise Management
🔹Condition-Based Preventive Maintenance (CBPM)

Modern N&V analysis goes beyond traditional mechanical assessments. With advancements in computational modelling, sensor technologies, and Transfer Path Analysis (TPA), we can now better understand how noise propagates through airborne, structure-borne, duct-borne, and fluid-borne paths. At the same time, evolving global frameworks by organisations such as the International Maritime Organization - IMO and the International Organisation for Standardisation (ISO) continue to shape how the industry approaches noise mitigation and compliance. However, the challenge remains the lack of open-access ship data and the need for automated, AI-driven diagnostic systems.

💡 The way forward lies in integrating data analytics, automation, and domain expertise to build quieter, safer, and more sustainable marine ecosystems.

At NDT, we are committed to driving innovation in N&V management and bridging research with real-world underwater applications.

Read more: https://t.ly/KxEMN

Arnab Das, Ministry of Ports, Shipping and Waterways, Ministry of Earth Sciences Government of India, Indian Navy.

18/03/2026

“The advancements in acoustic technology have transformed our comprehension of ocean basins. Sonar systems, initially developed during World War I for submarine direction, now play a pivotal role in oceanic studies. These systems reveal crucial information about the ocean floor’s topography by transmitting sound waves into the water and capturing returning echoes,” writes Romit Kaware, Research Fellow at the Maritime Research Center.

This UDA Digest Issue Brief unravels various acoustic challenges in the Indian Ocean Region (IOR). It highlights that the IOR is a bustling hub for various human activities, such as fishing, shipping, and offshore drilling, and that these activities generate noise from engines, propellers, and seismic surveys. This human-made noise can disrupt necessary sonar signals and mix with other underwater sounds.

📖Read the full article: (https://t.ly/Wr2aJ)

NirDhwani Technology Pvt Ltd., Arnab Das, Intergovernmental Oceanographic Commission (IOC) of UNESCO, Indian Ocean Rim Association - IORA, International Maritime Organization - IMO, Ministry of Earth Sciences Government of India. Ministry of Ports, Shipping and Waterways.

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