Daily Current Affairs · Last published 9 September 2026

UPSC Prelims Current Affairs: 9 September 2026

Lucknow tops India's clean air rankings, ISRO's EOS-05 satellite reaches its final orbit, and India's first genome study links genetic markers to endometriosis.

EnvironmentNational Clean Air Programme and city-level air quality rankings

Lucknow tops Swachh Vayu Sarvekshan 2026 among million-plus cities

Lucknow topped the Swachh Vayu Sarvekshan 2026 among cities with a population of more than 10 lakh, scoring 198 points to finish narrowly ahead of Indore, which scored 197, and Jabalpur, which scored 195. The Sarvekshan, conducted under the National Clean Air Programme, evaluates cities on measures such as public transport quality, dust control at construction sites and roads, solid waste management and the expansion of green cover, measured against their own past performance. Officials credited Lucknow's improved public bus fleet, stricter dust mitigation rules and continued tree plantation drives for its position at the top of the rankings.

Mains: GS3The actual city-level winners emerging only after the ministry's own award ceremony had named none suggests the survey's real value lies in the replicable interventions it documents, such as dust control and cleaner transport, rather than in the ranking exercise itself.
Science & TechnologyISRO earth observation satellites and orbital manoeuvre technology

ISRO's EOS-05 completes final orbit-raising manoeuvre, reaches geosynchronous orbit

ISRO completed the third and final orbit-raising manoeuvre of its EOS-05 satellite at 8.57 pm on 7 September 2026, firing the Liquid Apogee Motor for 1,247 seconds and placing the satellite into a near circular orbit of about 34,903 km by 35,884 km. EOS-05, launched aboard the GSLV-F17 rocket on 4 September, is India's first imaging or Earth observation satellite designed to operate from geosynchronous orbit, distinct from India's long-standing GSAT communication satellites in that same class of orbit, and will undergo health and systems checks over the coming days before its imaging payload is activated. Two earlier orbit-raising manoeuvres on 5 and 6 September had already reshaped the satellite's orbit from its initial sub-geosynchronous transfer orbit.

Mains: GS3That reaching geosynchronous orbit required three separate onboard engine burns after launch, not just the rocket itself, illustrates the added technical complexity behind India's push into higher, harder to reach orbits for strategic and disaster management satellites.
Science & TechnologyGenome-wide association studies and India's population-specific genetic research

India's first genome-wide study links 21 genetic regions to endometriosis

A study led by the ICMR, National Institute for Research on Women's Health in Mumbai has identified 21 suggestive genetic regions associated with endometriosis in Indian women, described by its researchers as the first genome-wide association study of the disease from India and South Asia. Published in the journal Scientific Reports, the study analysed genetic data from 2,523 participants gathered across 18 centres nationwide under the Endometriosis Clinical and Genetic Research in India initiative, and found the strongest signal near the LINC00415/SHISA2 region on chromosome 13. The researchers said the findings are not yet ready for clinical use or individual risk prediction, but provide a foundation for future genetic studies of endometriosis in South Asian populations.

Mains: GS3The study's own framing, that South Asian populations have been underrepresented in global genetic research on endometriosis, points to a broader gap in precision medicine: genetic risk scores built from European cohorts may not transfer cleanly to Indian patients without population-specific datasets like this one.
EconomyAgricultural subsidy schemes and institutional conflict of interest safeguards

National Horticulture Board freezes fresh subsidy applications for a month

The National Horticulture Board, an autonomous body under the Ministry of Agriculture and Farmers' Welfare, suspended acceptance of fresh applications for grant of clearance under two of its subsidy schemes for one month with effect from 4 September 2026, according to a circular issued on 3 September. The move follows the Board's decision in August to bar sitting ministers, members of Parliament, state legislators and government officials from availing subsidies under these schemes, after media reports found that a Union minister of state and the family of a serving IAS officer had received subsidies for their own farms under a scheme administered by their own ministry. The suspended schemes cover commercial horticulture development and cold storage construction or expansion, and the Board said it needed the pause to verify pending cases and update its online application system before resuming fresh applications.

Mains: GS2A serving Union minister and a bureaucrat's family drawing subsidies from a scheme administered by their own ministry, surfacing only through independent media investigation rather than internal audit, illustrates why conflict of interest safeguards in centrally sponsored schemes need to be built in by design rather than left to disclosure.
PolityPoshan Abhiyaan and India's national nutrition mission architecture

Union minister launches 9th Rashtriya Poshan Maah 2026 in Varanasi

Union Minister for Women and Child Development Annpurna Devi launched the ninth Rashtriya Poshan Maah 2026 at the Rudraksh International Cooperation and Convention Centre in Varanasi on 9 September 2026, in the presence of Uttar Pradesh Chief Minister Yogi Adityanath. The month long campaign, observed every September under the Poshan Abhiyaan framework, carries the theme Hamari Anganwadi, Hamari Jimmedari and calls on citizens to take shared ownership of anganwadi centres as the first point of nutrition, health and early childhood care. This year's edition also marks ten years of the Pradhan Mantri Matru Vandana Yojana and focuses on dietary diversity, fresh hot cooked meals at anganwadi centres, and community accountability for child nutrition outcomes.

Mains: GS2This year's campaign pairing a call for community ownership of anganwadi centres with marking ten years of the Pradhan Mantri Matru Vandana Yojana reflects a shift in India's nutrition strategy from top down service delivery toward citizen accountability at the last mile, a useful theme for a Mains answer on the delivery challenges of social sector schemes.
EconomyIndia's energy trade diversification and West Asia supply disruptions

India's LPG imports from the US surge 254% in the April to June quarter

India's imports of liquefied petroleum gas from the United States surged 254 percent to 2.6 billion dollars in the April to June quarter of 2026-27, even as crude oil imports from the US fell 57.5 percent over the same period, according to government trade data. The US share of India's total LPG imports rose above 50 percent over the six months to August, as disruptions to Gulf supplies linked to the West Asia crisis pushed Indian buyers to source more of the fuel from American exporters. The shift illustrates how the West Asia crisis has reshaped India's energy trade commodity by commodity, pushing buyers toward American LPG even as broader crude sourcing patterns moved differently.

Mains: GS3The US share of India's LPG imports crossing half within six months, even as crude oil purchases from America fell sharply over the same period, shows how a single regional supply shock can reshape trade patterns commodity by commodity rather than uniformly, a distinction useful for a Mains answer on energy security and import diversification.
EconomyGST enforcement against merged corporate entities

Supreme Court dismisses Centre's plea to revive Rs 363 crore GST demand against Vodafone Idea

The Supreme Court on 7 September 2026 dismissed the Centre's appeal seeking to revive a Rs 363 crore goods and services tax demand against Vodafone Idea, upholding a Bombay High Court ruling that had earlier quashed the demand. A bench of Justices J B Pardiwala and N Vinod Chandran questioned how tax proceedings could be initiated against Vodafone Mobile Services Limited after it had ceased to exist following its merger with another entity. The dispute arose after the Directorate General of GST Intelligence issued a show cause notice in August 2024 over the 2017 transfer of Vodafone Mobile Services' telecom tower business to ATC Telecom Infrastructure, seeking tax and penalty from a company the Bench noted no longer legally existed.

EnvironmentAravalli hills conservation and Supreme Court monitored expert committees

Supreme Court refuses Aravalli panel's extension request, sets 30 November deadline

The Supreme Court on 7 September 2026 rejected a six month extension sought by its own high powered committee tasked with defining the ecologically fragile Aravalli hills and range, and directed the panel to submit its final report by 30 November 2026 instead. Chief Justice of India Surya Kant, hearing the committee's plea for an extension until February 2027, remarked that it appeared to be waiting for his retirement and said the court would not allow further delay. The Supreme Court had earlier constituted the committee to recommend a uniform definition of the Aravalli range and measures to regulate mining in the region.

Mains: GS3The years-long absence of a settled legal definition of the Aravalli range, which this committee was formed to resolve, shows how a definitional vacuum rather than a policy gap can itself hold up effective regulation of mining and construction in an ecologically fragile area.

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Question 1 of 617%
Environment

Easy · National Clean Air Programme and city rankings

In the Swachh Vayu Sarvekshan 2026, results announced in September 2026, Lucknow topped the national ranking. Which population category of cities did this ranking place Lucknow first in?