Mains Answer Writing - 21 Oct, 2025

GS3

Science & Technology

10 marks

How did Chandrayaan-2’s CHACE-2 payload contribute to understanding the Moon’s exosphere and space weather interactions?

Tips for your answer

  • Define CHACE-2 & purpose – study of lunar exosphere composition.
  • Mention key finding – CME impact increased pressure & particle density.
  • State significance – helps understand space weather & lunar base planning.

More Challenges

View All
  • GS3

    Science & Technology

    1 Mar, 2026

    Carbon Capture and Utilisation (CCU) is emerging as a key strategy for decarbonising hard-to-abate sectors in India. Explain the concept of CCU and examine its potential, challenges, and policy measures required for its large-scale adoption in India.

    View Challenge
  • GS3

    Indian Polity

    Yesterday

    “Recent advances in HIV treatment have focused on targeting the viral capsid using long-acting drugs such as lenacapavir.”
    Explain the significance of capsid-targeting therapies in controlling HIV infection. Also discuss the challenges of drug resistance and the role of combination therapy.

    View Challenge
  • GS2

    Indian Polity

    27 Feb, 2026

    The balance between transparency and privacy is a recurring constitutional challenge in India.
    In the light of recent amendments to the RTI framework through the Digital Personal Data Protection law, examine whether the exemption of personal information undermines accountability of public authorities.

    View Challenge

Master Answer Writingfor UPSC Mains

Join thousands of aspirants mastering answer writing with daily challenges, instant AI evaluation, and topper copies

View Today's Challenge
SuperKalam is your personal mentor for UPSC preparation, guiding you at every step of the exam journey.

Download the App

Get it on Google PlayDownload on the App Store
Follow us

ⓒ Snapstack Technologies Private Limited