In short: Today’s Prelims current affairs cover the CAQM invoking GRAP Stage-I in Delhi-NCR, a Rs 770 crore radar contract for the Indian Army, the conclusion of Exercise IBSAMAR-IX, and the IAF’s industry outreach on unmanned systems, with static links, a quick revision table and practice MCQs.
GRAP Stage-I Invoked in Delhi-NCR
Why in news: The Commission for Air Quality Management in NCR and Adjoining Areas (CAQM) invoked Stage-I of the Graded Response Action Plan (GRAP) with immediate effect on 21 October 2026, after Delhi’s daily average AQI reached 244 at 2 PM and 245 at 4 PM, both in the ‘Poor’ category (201-300), per the CPCB’s daily AQI Bulletin.
- About: GRAP is a graded set of emergency measures for Delhi-NCR, with four stages tied to Delhi’s AQI: Poor (201-300), Very Poor (301-400), Severe (401-450) and Severe+ (above 450).
- Nodal body: CAQM, constituted under the Commission for Air Quality Management in NCR and Adjoining Areas Act, 2021; its directions override conflicting State orders in the region.
- What was invoked: All 25 action points under Stage-I, covering dust control, mechanised road cleaning and stricter monitoring of construction and industrial emissions.
Source: PIB · GS Paper 3 (Environment)
Prelims angle: Remember the AQI band for each GRAP stage, and that CAQM’s statutory directions prevail over State government orders in Delhi-NCR — a common point of confusion is assuming GRAP applies nationally rather than only to the NCR region.
MOD Signs Rs 770 Crore Contract for Improved Low Level Light Weight Radar (LLLR-I)
Why in news: The Ministry of Defence signed a contract with Bharat Electronics Limited (BEL) on 21 October 2026 to procure the Improved Low Level Light Weight Radar (LLLR-I) for the Indian Army, at a cost of approximately Rs 770 crore, in the presence of Defence Secretary Rajesh Kumar Singh.
- About: LLLR-I can detect and track fighter-size aerial targets as well as mini/micro drones, with the added capability of prioritising aerial targets.
- Purpose: It will help the Army counter threats from Unmanned Aerial Systems (UAS) as part of India’s layered air defence.
- Manufacturer: Bharat Electronics Limited (BEL), a Navratna Defence Public Sector Undertaking (DPSU).
- Context: The procurement is described as a step towards indigenisation of air defence platforms under the Government’s Viksit Bharat @2047 vision, with a boost to Micro, Small and Medium Enterprises (MSMEs) in the defence manufacturing ecosystem.
Source: PIB · GS Paper 3 (Defence and Security)
Prelims angle: Note the manufacturer (BEL) and the specific capability (detecting fighter-size targets and mini/micro drones) — Prelims often tests which DPSU manufactures a named defence platform.
Exercise IBSAMAR-IX 2026 Concludes in South Africa
Why in news: The ninth edition of the India-Brazil-South Africa (IBSAMAR) trilateral maritime exercise concluded on 20 October 2026 at Simon’s Town, South Africa, after a 10-day joint exercise covering port and sea phases.
- About: IBSAMAR is a trilateral naval exercise among India, Brazil and South Africa, held to strengthen operational cooperation, interoperability and mutual understanding among the three navies.
- Host (2026 edition): South Africa, at Simon’s Town.
- Indian participation: INS Tarkash represented the Indian Navy in this edition.
- Focus areas: Professional exchanges and joint maritime drills between the three navies during the port and sea phases.
Source: PIB · GS Paper 3 (Defence Exercises)
Prelims angle: IBSAMAR is one of several trilateral/bilateral naval exercises India takes part in (along with VARUNA, MALABAR, SIMBEX); remember it is the India-Brazil-South Africa grouping specifically, not to be confused with BRICS naval drills.
IAF’s Industry Outreach Programme on Unmanned and Autonomous Systems
Why in news: The Indian Air Force (IAF) conducted an Industry Outreach Programme at Vigyan Bhawan, New Delhi, on 21 October 2026, to share its long-term capability requirements in unmanned and autonomous systems with MSMEs, startups and industry partners.
- About: The programme built on the ‘IAF Unmanned and Autonomous Systems Roadmap’, released at IAF Dronathon 2026 held in Pokhran on 14 September 2026.
- Chaired by: Air Marshal Premkumar K, Director General (Weapon Systems), Air Headquarters.
- Participation: About 100 representatives from drone companies and industry partners attended.
- Theme: Aatmanirbharta (self-reliance) in unmanned systems, with emphasis on indigenous propulsion, autonomous software, resilient navigation and standardised interfaces.
Source: PIB · GS Paper 3 (Defence Technology)
Prelims angle: Link this to the broader Aatmanirbhar Bharat theme in defence manufacturing; remember the roadmap was first released at IAF Dronathon 2026 in Pokhran, not at this outreach event itself.
Quick Revision Table
| Item | Key fact to remember | Subject |
|---|---|---|
| GRAP Stage-I | Invoked when Delhi AQI is 201-300 (‘Poor’); 25 action points; CAQM is the nodal body | Environment |
| LLLR-I radar contract | Rs 770 crore contract with BEL; detects fighter-size targets and mini/micro drones | Defence |
| IBSAMAR-IX 2026 | India-Brazil-South Africa naval exercise; concluded at Simon’s Town; INS Tarkash represented India | Defence |
| IAF Industry Outreach | Shared IAF’s Unmanned and Autonomous Systems Roadmap (released at Dronathon 2026, Pokhran) with industry | Defence/S&T |
Practice MCQs
Q1. GRAP Stage-I is invoked in Delhi-NCR when the Air Quality Index (AQI) falls in which range?
- 0-100
- 101-200
- 201-300
- 301-400
Show answer
Answer: (c) GRAP Stage-I corresponds to the ‘Poor’ AQI category, between 201 and 300; 301-400 is Stage II (‘Very Poor’).
Q2. The Improved Low Level Light Weight Radar (LLLR-I), recently contracted for the Indian Army, is manufactured by which organisation?
- Hindustan Aeronautics Limited
- Bharat Electronics Limited
- Bharat Dynamics Limited
- Defence Research and Development Organisation
Show answer
Answer: (b) The contract for LLLR-I, worth about Rs 770 crore, was signed with Bharat Electronics Limited (BEL).
Q3. Exercise IBSAMAR is a trilateral naval exercise among India and which two other countries?
- Brazil and South Africa
- Bangladesh and Sri Lanka
- Singapore and Australia
- Brazil and Indonesia
Show answer
Answer: (a) IBSAMAR stands for the India-Brazil-South Africa trilateral naval exercise; its ninth edition concluded at Simon’s Town, South Africa, in October 2026.
Q4. The IAF’s Unmanned and Autonomous Systems Roadmap, shared with industry at a recent outreach programme, was first released at which event?
- Aero India 2026
- IAF Dronathon 2026 at Pokhran
- Republic Day Parade 2026
- DefExpo 2026
Show answer
Answer: (b) The roadmap was released during IAF Dronathon 2026, held at Pokhran on 14 September 2026.
FAQs
What is GRAP Stage-I and why was it invoked on 21 October 2026?
GRAP Stage-I is the first set of emergency air-quality measures for Delhi-NCR, invoked by the CAQM on 21 October 2026 after Delhi’s AQI reached 244-245, in the ‘Poor’ category.
Which company makes the LLLR-I radar for the Indian Army?
The Improved Low Level Light Weight Radar (LLLR-I) is being procured from Bharat Electronics Limited (BEL) under a contract worth about Rs 770 crore signed on 21 October 2026.
What is Exercise IBSAMAR and which countries take part in it?
IBSAMAR is a trilateral naval exercise among India, Brazil and South Africa, and its ninth edition, IBSAMAR-IX 2026, concluded at Simon’s Town, South Africa, with the Indian Navy represented by INS Tarkash.
What is the IAF’s Unmanned and Autonomous Systems Roadmap?
It is a roadmap released by the Indian Air Force at IAF Dronathon 2026 in Pokhran on 14 September 2026, outlining its long-term capability requirements for unmanned and autonomous systems.
हिंदी सारांश
21 अक्टूबर 2026 को वायु गुणवत्ता प्रबंधन आयोग (CAQM) ने दिल्ली का AQI ‘खराब’ श्रेणी (244-245) में पहुंचने पर ग्रेडेड रिस्पॉन्स एक्शन प्लान (GRAP) का स्टेज-1 तुरंत प्रभाव से लागू कर दिया, जिसमें 25 कार्य बिंदु शामिल हैं। रक्षा मंत्रालय ने भारत इलेक्ट्रॉनिक्स लिमिटेड (BEL) के साथ लगभग 770 करोड़ रुपये के इम्प्रूव्ड लो लेवल लाइट वेट रेडार (LLLR-I) के अनुबंध पर हस्ताक्षर किए, जो लड़ाकू विमान और ड्रोन का पता लगाने में सक्षम है।
भारत-ब्राजील-दक्षिण अफ्रीका के त्रिपक्षीय नौसैनिक अभ्यास आईबीएसएएमएआर-IX 2026 का सफल समापन दक्षिण अफ्रीका के साइमन्स टाउन में हुआ, जिसमें भारतीय नौसेना का प्रतिनिधित्व आईएनएस तरकश ने किया। इसके अतिरिक्त, भारतीय वायुसेना ने नई दिल्ली में उद्योग भागीदारों के साथ मानवरहित और स्वायत्त प्रणालियों पर अपने रोडमैप को साझा करने हेतु एक कार्यक्रम आयोजित किया, जो आत्मनिर्भरता पर केंद्रित था।
Sources: PIB – CAQM invokes Stage-I of GRAP in Delhi-NCR; PIB – MOD inks Rs 770 Cr contract for LLLR-I radars; PIB – Exercise IBSAMAR-IX 2026 concludes; PIB – IAF Industry Outreach Programme on Unmanned and Autonomous Systems.
Related reading on GSMitra: UPSC Prelims Current Affairs 19 October 2026, UPSC Prelims Current Affairs 16 October 2026: INS Samarthak and CAQM’s NCR Order, GRAP Stage-I in Delhi-NCR: CAQM’s Air Pollution Response Explained for UPSC.
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