Overview

Previous Year UPSC-CSE Questions By the end you will be able to draft model answers for the following UPSC questions. Each question carries a collapsible framework showing how to approach it in the exam.

  1. UPSC Prelims 2025Consider the following types of vehicles, in the context of clean mobility:
    1. Full battery electric vehicles
    2. Hydrogen fuel cell vehicles
    3. Fuel cell-electric hybrid vehicles

    How many of the above are considered as alternative powertrain vehicles?

    1. a Only one
    2. b Only two
    3. c All the three
    4. d None
    How to approach this Prelims question

    Question type: multi-statement

    Approach: Recall that alternative powertrains are those that move away from conventional internal-combustion engines.

    Trap to watch: All three are alternative powertrains; the trap is to exclude the hybrid fuel-cell option.

    Key facts to recall:

    • Battery-electric vehicles run on stored electricity.
    • Hydrogen fuel-cell vehicles generate electricity from hydrogen.
    • Fuel-cell electric hybrids combine a fuel cell with a battery.

    Answer signal: All three are alternative powertrain vehicles. Correct answer: All the three.

  2. UPSC Mains 2022 GS-II'Clean energy is the order of the day.' Describe briefly India's changing policy towards climate change in various international fora in the context of geopolitics.
    How to structure the answer in the exam

    Directive verb: Describe · Approach: Trace India's evolving climate stance and link it to its clean-energy partnerships and forum positions.

    Introduction: Open with India's shift from a defensive climate posture to proactive clean-energy leadership.

    Body (sub-themes to develop):

    • From common-but-differentiated responsibilities to ambitious net-zero pledges.
    • Leadership in the International Solar Alliance and clean-energy coalitions.
    • Bilateral green partnerships, such as the India-Norway green maritime tie.
    • Geopolitics: energy security, technology access and the Global South's interests.
    • Sectoral action: renewables, green hydrogen, and shipping decarbonisation.

    Conclusion: Conclude that India's clean-energy diplomacy now blends climate ambition with strategic and economic interest.

The India-Norway green maritime partnership is the focus of the Joint Statement issued during Prime Minister Modi's visit to Norway on 18 May 2026. It pairs Norway's expertise in clean shipping and ship design with India's shipbuilding scale and shipyard capacity to advance maritime decarbonisation. The two sides agreed to cooperate on green shipping, hydrogen and e-methanol vessels, and green ports, and their science agencies signed a declaration on science, technology and innovation for the green shift. The bilateral runs alongside, but is distinct from, the multilateral India-Nordic Summit held the next day.

Why the India-Norway partnership is in focus

A bilateral visit centred on green shipping

During Prime Minister Modi's visit to Norway on 18 May 2026, India and Norway issued a Joint Statement deepening their partnership, with green maritime cooperation as its centrepiece.

A green maritime partnership focuses on cutting the carbon emissions of shipping. It covers cleaner fuels, efficient ship design, and greener ports, the elements that together decarbonise sea transport.

The visit was a bilateral leg, hosted by the Norwegian Prime Minister. It is distinct from the India-Nordic Summit, the multilateral meeting with the five Nordic states held the following day.

The core elements of the partnership are:

  • Green shipping: cooperation on clean coastal shipping and the green transition of vessels.
  • Clean fuels: work on hydrogen-powered vessels and e-methanol bunkering.
  • Shipbuilding: pairing Norway’s ship design with India’s shipyard capacity.
  • Science cooperation: a declaration on science, technology and innovation for the green shift.

Why the partnership matters

Two complementary maritime nations

Norway is a global leader in clean shipping and ship design, while India has large shipyards and a vast pool of seafarers. The fit between the two is natural and unusually complementary.

Shipping is hard to decarbonise. It carries most of world trade yet runs largely on heavy fuel oil, so partnerships on hydrogen and e-methanol vessels address one of the toughest gaps in climate action.

For India, the tie supports its blue economy and shipbuilding ambitions. Building world-class green vessels at home could turn India into a hub for an emerging global market.

A complementary partnershipWhat each side brings to green shippingNorway bringsClean-shipping expertise,advanced ship design,and green-fuel know-how.+India bringsLarge shipyards,a vast seafarer pool,and growing demand.Green vesselsbuilt in India fora global marketDesign plus capacity equals affordable, eco-friendly ships.Figure 1. Norwegian design and Indian capacity, combined for green shipping.Ministry of External Affairs; PIB.Digitally LearnCopyright (c) 2026. All Rights Reserved.

What the partnership signifies

Decarbonisation, self-reliance and science

Three threads carry the weight: the decarbonisation of shipping, India's shipbuilding self-reliance, and deeper science cooperation.

First, decarbonisation. Working on hydrogen and e-methanol vessels and on green coastal shipping helps cut emissions from a sector that is central to trade yet hard to clean.

Second, self-reliance. Pairing Norwegian design with Indian shipyards advances India's goal of building advanced vessels at home, supporting jobs and the blue economy.

Third, science cooperation. The declaration on science and technology for the green shift links research bodies in both countries on clean energy, ocean science and the circular economy.

Distinguishing features of the partnership

The areas of cooperation

The table sets out the main strands of the partnership, so its green-maritime focus is visible at a glance.

Area What it covers
Green shipping Clean coastal shipping and the green transition of vessels
Clean fuels Hydrogen-powered vessels and e-methanol bunkering
Shipbuilding Norwegian ship design with Indian shipyard capacity
Science and technology A declaration on innovation for the green shift

Three features that define the partnership

Three elements set this partnership apart from a routine bilateral statement:

  1. (i) A single, sharp focus. The partnership is anchored in green shipping rather than a long, diffuse list of sectors.
  2. (ii) Complementarity. It builds on a genuine fit between Norwegian design strength and Indian manufacturing scale.
  3. (iii) Research-backed. Science and technology agencies in both countries signed pacts to underpin the cooperation with research.
What the partnership coversFour pillars of the green maritime agendaGreen shippingClean coastal shippingand greener vessels.Clean marine fuelsHydrogen vessels ande-methanol bunkering.ShipbuildingNorwegian design withIndian shipyard capacity.Science and technologyA declaration on innovationfor the green shift.Figure 2. Shipping, fuels, shipbuilding and science.Ministry of External Affairs; PIB.Digitally LearnCopyright (c) 2026. All Rights Reserved.

Observable outcomes

Three trackable outcomes

The partnership translates into three developments to watch in the coming years.

  1. (a) Joint vessel projects. Norwegian and Indian firms can pursue co-design and building of green ferries and vessels.
  2. (b) Cleaner ports and fuels. Pilots on e-methanol bunkering and green ports can take shape at Indian harbours.
  3. (c) Research outputs. The science declaration can yield joint projects on ocean science, clean energy and the circular economy.

Green shipping depends on the cost of clean fuels. Whether hydrogen and e-methanol become affordable will decide how fast these projects scale.

Green shipping and the wider climate agenda

Maritime decarbonisation, the blue economy and clean-energy diplomacy

The partnership sits inside the global push for maritime decarbonisation, where international rules increasingly require shipping to cut its greenhouse-gas emissions over the coming decades.

It connects to India's blue economy agenda, which seeks to harness ocean resources sustainably, and to its shipbuilding and port-modernisation programmes along the coast.

The tie also advances India's clean-energy diplomacy. Partnering a climate-forward economy like Norway strengthens India's position in international forums on energy transition and green technology.

The challenge of clean shippingThe problem and the partnership’s responseThe problemShipping carries mostworld trade but runson heavy fuel oil.The responseClean fuels, efficientdesign, and greenerports cut emissions.The India-Norway partnership works on the response side of this equation.Figure 3. From heavy fuel oil to clean fuels and green design.Ministry of External Affairs; PIB.Digitally LearnCopyright (c) 2026. All Rights Reserved.

UPSC relevance and exam focus

Where this fits in the UPSC-CSE syllabus

This topic maps to General Studies Paper II: bilateral agreements involving India, and to General Studies Paper III: environment, the blue economy and clean-energy transition.

For Prelims, hold the high-yield facts: the 18 May 2026 Joint Statement, the green-shipping focus, the clean fuels involved, and the science declaration for the green shift.

For Mains, two framings recur: India's clean-energy and climate diplomacy with partners, and the decarbonisation of shipping within the blue economy.

Recurring linked concepts an aspirant should keep in working memory:

  • Maritime decarbonisation: cutting shipping’s greenhouse-gas emissions through fuels and design.
  • Green hydrogen and e-methanol: clean marine fuels that can replace heavy fuel oil.
  • Blue economy: the sustainable use of ocean resources for growth and jobs.
  • Clean-energy diplomacy: India’s partnerships and positions in climate forums.

The India-Norway bilateral and the India-Nordic Summit are different events. Treating the bilateral green partnership as the same as the multilateral summit is an easy error.

Do not present green shipping as a niche issue. Shipping moves most global trade, so decarbonising it is central, not peripheral, to climate action.

Prelims MCQ practice

Each question below tests one specific concept on the topic. Click to reveal the answer and a full option-wise explanation.

Q1. Consider the following statements regarding the India-Norway partnership of May 2026:

  1. A Joint Statement was issued during PM Modi's visit to Norway.
  2. Green maritime cooperation was a central focus.
  3. It was the same event as the multilateral India-Nordic Summit.

Which of the statements given above is/are correct?

  1. 1 and 2 only
  2. 2 and 3 only
  3. 1 and 3 only
  4. 1, 2 and 3
Show answer and explanation

Answer: 1 and 2 only

Explanation.

Statements 1 and 2 are correct: a Joint Statement was issued during the visit, with green maritime cooperation central. Statement 3 is wrong: the bilateral visit was distinct from the multilateral India-Nordic Summit held separately. Hence 1 and 2 only.

Q2. With reference to the green maritime partnership, consider the following clean marine fuels:

  1. Hydrogen
  2. E-methanol
  3. Heavy fuel oil

Which of the above are clean fuels promoted under the partnership?

  1. 1 and 2 only
  2. 2 and 3 only
  3. 1 and 3 only
  4. 1, 2 and 3
Show answer and explanation

Answer: 1 and 2 only

Explanation.

Statements 1 and 2 are correct: hydrogen and e-methanol are clean marine fuels the partnership promotes. Heavy fuel oil is the high-emission fuel the transition seeks to replace, not a clean fuel. Hence 1 and 2 only.

Q3. The India-Norway green maritime partnership is built mainly on which one of the following complementarities?

  1. India's ship design and Norway's shipyards
  2. Norway's clean-shipping expertise and India's shipyard capacity
  3. India's oil reserves and Norway's refineries
  4. Norway's seafarers and India's design houses
Show answer and explanation

Answer: Norway's clean-shipping expertise and India's shipyard capacity

Explanation.

Option (b) is correct. The partnership pairs Norway's clean-shipping and design expertise with India's shipyard capacity. Option (a) reverses the strengths; options (c) and (d) misstate them. Hence option (b).

Q4. Decarbonising shipping is considered difficult mainly because:

  1. Ships carry very little of world trade
  2. Shipping runs largely on heavy fuel oil and lacks cheap clean alternatives
  3. Ships are already zero-emission
  4. International rules forbid clean fuels
Show answer and explanation

Answer: Shipping runs largely on heavy fuel oil and lacks cheap clean alternatives

Explanation.

Option (b) is correct. Shipping carries most world trade and runs largely on heavy fuel oil, while clean alternatives remain costly, which makes decarbonisation hard. The other options are factually wrong. Hence option (b).

Q5. The 'blue economy', a theme linked to this partnership, refers to:

  1. The sustainable use of ocean resources for economic growth
  2. The trade in blue-coloured goods
  3. The financing of water-supply projects only
  4. The economy of polar ice caps
Show answer and explanation

Answer: The sustainable use of ocean resources for economic growth

Explanation.

Option (a) is correct. The blue economy is the sustainable use of ocean and marine resources for economic growth, livelihoods and jobs while preserving ocean health. The other options misdefine the term. Hence option (a).

Q6. Consider the following statements about the India-Norway science cooperation announced with the partnership:

  1. Indian and Norwegian research agencies signed pacts for the green shift.
  2. The cooperation includes ocean science and the circular economy.
  3. The partnership excludes any role for science and technology.

Which of the statements given above is/are correct?

  1. 1 and 2 only
  2. 2 and 3 only
  3. 1 and 3 only
  4. 1, 2 and 3
Show answer and explanation

Answer: 1 and 2 only

Explanation.

Statements 1 and 2 are correct: research agencies signed pacts for the green shift covering ocean science and the circular economy. Statement 3 is wrong: science and technology is a core strand of the partnership. Hence 1 and 2 only.

Sources and Further Reading

Editorial Disclaimer

This article is compiled from the reference materials listed in the Sources section. It is an explainer for UPSC preparation and is not a substitute for primary documents (NCERTs, GoI ministry releases, IMD bulletins, RBI / CEA / MoEFCC publications, and Standing-Committee reports).