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TRISHNA Mission

PYQs

8

Articles

1

Momentum

21

Phase IFoundation

Background

Overview

Illustrates the application of space technology for addressing critical global challenges like climate change, water scarcity, and food security. Highlights international collaboration in advanced scientific research and its societal benefits.

Satellite missions play a crucial role in Earth observation, providing vital data for environmental monitoring, resource management, and climate studies. The TRISHNA mission is designed to contribute significantly to these areas through advanced thermal imaging capabilities.

Phase IIStatic core

Facts & tables

Key facts

Collaborators

Joint mission between ISRO (India) and CNES (France).

Primary Objective

High spatial and temporal resolution monitoring of Earth's surface temperature, emissivity, and biophysical/radiation variables.

Key Applications

Addresses water and food security challenges, monitors human-induced climate change impacts, and aids efficient water resource management through evapotranspiration monitoring.

Payloads

Thermal Infra-Red (TIR) payload by CNES; Visible - Near Infra-Red - Short Wave Infra-Red (VNIR-SWIR) payload by ISRO.

Reference table

Static syllabus anchors

TypeReference
Conceptual areaClimate Change & Conventions
Conceptual areaWelfare Schemes & Social Policies

Reference table

Institutions & roles

BodyRole
Indian Space Research Organisation (ISRO)Develops and launches
Centre National d’Etudes Spatiales (CNES)Develops and collaborates
Phase IIIExam lens

Prelims angle

Overview

Prelims angle: Multi-statement analysis

Prelims angle: Conceptual understanding

Quick revision

  • Joint ISRO-CNES Earth observation mission.
  • Monitors surface temperature, emissivity, biophysical variables.
  • Aims to address water/food security and climate change.
  • Uses Thermal Infra-Red (TIR) and Visible-Near Infra-Red-Short Wave Infra-Red (VNIR-SWIR) payloads.
  • Crucial for evapotranspiration monitoring and water resource management.

High-confidence PYQs

2026Multi-statement analysis, Factual recall

Which of the following statements about Rare Earth Elements (REEs) and Critical Minerals is/are correct ? 1. Modern technological innovations including Arti...

GeographyOpen question

Consider the following statements about Mission Sudarshan Chakra of India: 1. It aims to enhance India's air defence, ballistic missile defence and aerial o...

Science & TechnologyOpen question
2026Statement-based questions, Factual recall

Which of the following statements about Rare Earth Elements (REEs) and Critical Minerals is/are correct ? 1. Modern technological innovations including Arti...

GeographyOpen question

Consider the following statements about Mission Sudarshan Chakra of India: 1. It aims to enhance India's air defence, ballistic missile defence and aerial o...

Science & TechnologyOpen question
2022Multi-statement analysis, Conceptual understanding

If a major solar storm (solar-flare) reaches the Earth, which of the following are the possible effects on the Earth? 1. GPS and navigation systems could fai...

Science & TechnologyOpen question
2019Multi-statement analysis, Conceptual understanding

For the measurement/estimation of which of the following are satellite images/remote sensing data used? 1. Chlorophyll content in the vegetation of a specifi...

Science & TechnologyOpen question

Recently, scientists observed the merger of giant ‘blackholes’ billions of light-years away from the Earth. What is the significance of this observation?

Science & TechnologyOpen question
2019Conceptual understanding, Cause and effect relationships

For the measurement/estimation of which of the following are satellite images/remote sensing data used? 1. Chlorophyll content in the vegetation of a specifi...

Science & TechnologyOpen question

Recently, scientists observed the merger of giant ‘blackholes’ billions of light-years away from the Earth. What is the significance of this observation?

Science & TechnologyOpen question
2018Statement-based questions, Factual recall

With reference to India’s satellite launch vehicles, consider the following statements: 1. PSLVs launch the satellites useful for Earth resources monitoring...

Science & TechnologyOpen question
2016Statement-based questions, Factual recall

With reference to ‘Astrosat’, the astronomical observatory launched by India, which of the following statements is/are correct? 1. Other than the USA and Rus...

Science & TechnologyOpen question
2015Multi-statement analysis, Factual recall

In which of the following activities are Indian Remote Sensing (IRS) satellites used? 1. Assessment of crop productivity 2. Locating groundwater resources 3...

Science & TechnologyOpen question

Topic timeline

Climate Change & ConventionsWelfare Schemes & Social Policies
Prelims 2015· Multi-statement analysis, Factual recall

In which of the following activities are Indian Remote Sensing (IRS) satellites used? 1. Assessment of crop productivity 2. Locating groundwater resources 3...

Open question
Prelims 2016· Statement-based questions, Factual recall

With reference to ‘Astrosat’, the astronomical observatory launched by India, which of the following statements is/are correct? 1. Other than the USA and Rus...

Open question
Prelims 2018· Statement-based questions, Factual recall

With reference to India’s satellite launch vehicles, consider the following statements: 1. PSLVs launch the satellites useful for Earth resources monitoring...

Open question
Prelims 2019· Multi-statement analysis, Conceptual understanding

For the measurement/estimation of which of the following are satellite images/remote sensing data used? 1. Chlorophyll content in the vegetation of a specifi...

Open question

Recently, scientists observed the merger of giant ‘blackholes’ billions of light-years away from the Earth. What is the significance of this observation?

Open question
Prelims 2019· Conceptual understanding, Cause and effect relationships

For the measurement/estimation of which of the following are satellite images/remote sensing data used? 1. Chlorophyll content in the vegetation of a specifi...

Open question

Recently, scientists observed the merger of giant ‘blackholes’ billions of light-years away from the Earth. What is the significance of this observation?

Open question
Prelims 2022· Multi-statement analysis, Conceptual understanding

If a major solar storm (solar-flare) reaches the Earth, which of the following are the possible effects on the Earth? 1. GPS and navigation systems could fai...

Open question
Prelims 2026· Multi-statement analysis, Factual recall

Which of the following statements about Rare Earth Elements (REEs) and Critical Minerals is/are correct ? 1. Modern technological innovations including Arti...

Open question

Consider the following statements about Mission Sudarshan Chakra of India: 1. It aims to enhance India's air defence, ballistic missile defence and aerial o...

Open question
Prelims 2026· Statement-based questions, Factual recall

Which of the following statements about Rare Earth Elements (REEs) and Critical Minerals is/are correct ? 1. Modern technological innovations including Arti...

Open question

Consider the following statements about Mission Sudarshan Chakra of India: 1. It aims to enhance India's air defence, ballistic missile defence and aerial o...

Open question

We have complete trust in our Indian partners: French National Space Agency

08 Sep 2026 · The TRISHNA mission, a joint ISRO-CNES venture, is an advanced Earth observation satellite designed to monitor surface temperature and related variables with high resolution, crucial for managing water resources, ensuring food security, and studying climate change impacts.

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Related topics

Current topic

TRISHNA Mission

Often confused with

Indo-French Space Cooperation

Open notes

Practice writing on this topic

UPSC has asked 8 linked questions on TRISHNA Mission in Mains. Write an answer to one — and get it evaluated.

See Mains PYQsEvaluate an answer

UPSC Prelims PYQs on TRISHNA Mission

Practice official previous year questions asked by UPSC related to this concept.

With reference to India’s satellite launch vehicles, consider the following statements: 1. PSLVs launch the satellites useful for Earth resources monitoring...

2018·Science & Technology
Solve

With reference to ‘Astrosat’, the astronomical observatory launched by India, which of the following statements is/are correct? 1. Other than the USA and Rus...

2016·Science & Technology
Solve

In which of the following activities are Indian Remote Sensing (IRS) satellites used? 1. Assessment of crop productivity 2. Locating groundwater resources 3...

2015·Science & Technology
Solve

For the measurement/estimation of which of the following are satellite images/remote sensing data used? 1. Chlorophyll content in the vegetation of a specifi...

2019·Science & Technology
Solve

Which of the following statements about Rare Earth Elements (REEs) and Critical Minerals is/are correct ? 1. Modern technological innovations including Arti...

2026·Geography
Solve

Recently, scientists observed the merger of giant ‘blackholes’ billions of light-years away from the Earth. What is the significance of this observation?

2019·Science & Technology
Solve

If a major solar storm (solar-flare) reaches the Earth, which of the following are the possible effects on the Earth? 1. GPS and navigation systems could fai...

2022·Science & Technology
Solve

Consider the following statements about Mission Sudarshan Chakra of India: 1. It aims to enhance India's air defence, ballistic missile defence and aerial o...

2026·Science & Technology
Solve

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