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UPSC Key: Electoral Registration Officers, Separation of power, and Nuclear energy

What is the significance of Electoral Registration Officers (EROs) in the SIR, and why is it important for your UPSC exam? What significance do topics such as the Indus Waters Treaty, nuclear energy, and the Indian economy have for both the Preliminary and Main examinations? You can learn more by reading the Indian Express UPSC Key for December 27, 2025.

upsc, EROs, SIR, bengalThe EROs are the sole and competent authority to issue notices if they doubt an elector’s eligibility. Know more in our UPSC Key. (File photo)
Written by: Khushboo Kumari
29 min readNew DelhiDec 28, 2025 12:06 PM IST First published on: Dec 27, 2025 at 06:41 PM IST

Important topics and their relevance in UPSC CSE exam for December 27, 2025. If you missed the December 26, 2025, UPSC CSE exam key from the Indian Express, read it here.

FRONT

Bihar playbook, Bengal pushback: local officials flag fear of deletions, say being bypassed as EC generates notices

Syllabus:

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Preliminary Examination: Current events of national importance, Indian Polity and Governance-Constitution.

Mains Examination: General Studies II: Salient features of the Representation of People’s Act, Constitution of India — features, significant provisions and basic structure.

What’s the ongoing story: As Electoral Registration Officers (EROs) in West Bengal prepare to hold hearings from Saturday to decide whether lakhs of electors will remain on the rolls, an association of state service officers has flagged a serious concern over the potential of large-scale “system-driven” deletions the EROs could be blamed for, despite not being involved in generating the notices.

Khushboo Kumari previously worked as a Deputy Copy Editor at The Indian Express, where she wrote for... Read More

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