June 2026
In short: India's places in the news and physical geography this month — distilled for SI/Constable Prelims.
Current Affairs — India › Geography · 9 min read · Free to read · English & Telugu
Bilingual study notes for the Andhra Pradesh Police SI & Constable exams (SLPRB AP) by AP Police Hub, a product of Anvil Academy.
The Tungabhadra dam's 33 new crest gates and a fresh push to link the Godavari and Cauvery rivers, and Great Nicobar Island's strategic-chokepoint geography behind its ₹81,000-crore development controversy.
June 2026 — At a Glance
June 2026's fresh Geography content sat outside the usual 'places in the news' atlas — which this month was carried fully in the Science digest — inside river engineering and strategic-island geography. On 25 June, three Chief Ministers and a Union Minister together dedicated the Tungabhadra dam's 33 newly replaced crest gates, and Andhra Pradesh CM Chandrababu Naidu used the same platform to renew a national push for linking the Godavari and Cauvery rivers. And through the month, Great Nicobar Island's ₹81,000-crore port-airport-township project — sitting on one of the world's most consequential maritime chokepoints — drew fresh scrutiny over its scale, seismicity and impact on the island's Shompen tribe.
1. The Tungabhadra Dam & a New Push for River-Linking
33 new crest gates, dedicated together
- What happened — On 25 June 2026 at Munirabad (Koppal district, Karnataka), all 33 replaced crest gates of the Tungabhadra dam were dedicated to the nation by Andhra Pradesh CM N. Chandrababu Naidu, Karnataka CM D.K. Shivakumar, Telangana CM A. Revanth Reddy and Union Minister C.R. Patil — at a cost of ₹51 crore, on a National Dam Safety Authority recommendation.
- Why the gates were replaced — The move followed the washout of Gate No. 19 during the 2024 monsoon, which exposed the vulnerability of the dam's ageing gate system and forced emergency water releases; the project irrigates about 1.46 lakh hectares in Andhra Pradesh's Kurnool, Kadapa and Anantapur districts.
The Tungabhadra river system
- Origin & course — The Tunga (from Varaha Parvatha) and Bhadra (from Kudremukh) streams merge at Kudli village near Shivamogga, Karnataka, to form the Tungabhadra, a major right-bank tributary of the Krishna; it flows about 531 km, forming part of the Karnataka-Telangana-Andhra Pradesh boundary, before joining the Krishna at Sangamaleshwaram, Kurnool district.
- Governance — The Tungabhadra Board, constituted in 1953, manages dam operations for the riparian states on a fixed 65:35 sharing ratio between Karnataka and undivided Andhra Pradesh (now shared between AP and Telangana); a joint meeting held around the gate dedication was described as a first step toward more amicable water-sharing.
A renewed push for Godavari-Cauvery linking
- The proposal — Addressing a public meeting at the same event, AP CM Naidu called for interlinking the Godavari and Cauvery rivers as a national project, arguing it would benefit Karnataka, Andhra Pradesh, Tamil Nadu and Telangana together — reviving a long-standing river-interlinking idea that also involves the intermediate Krishna basin.
2. Great Nicobar Island — India's Strategic Chokepoint
Where Great Nicobar sits
- Location — About 1,000 sq km in area (roughly the size of Hong Kong), Great Nicobar lies nearly 1,600 km from mainland India but is actually closer to Thailand, Malaysia and Indonesia, and about 500 km south of Port Blair (Sri Vijaya Puram).
- Why it's strategic — The island sits near the western approach to the Strait of Malacca, through which roughly one-third of global trade and seaborne oil moves — including ~80% of China's crude oil imports and two-thirds of its trade — giving it significant potential for maritime domain awareness in the Indo-Pacific.
The ₹81,000-crore development project
- Four components — The ~$11-billion (~₹81,000-crore) Great Nicobar Island Development Project comprises a transshipment port, a dual-use (civil-military) airport, a power plant and a township eventually meant to house up to 3.5 lakh people — a roughly 40-fold rise over the island's current population of under 10,000.
- The controversy — The project needs 166.1 sq km (~16% of the island), would fell nearly 9.64 lakh trees, and roughly half the allocated land overlaps tribal reserves of the reclusive Shompen (a few hundred people) — while the island sits in Seismic Zone V and part of its southern tip subsided by 4.25 m in the 2004 tsunami. Opposition leader Rahul Gandhi visited the island on 5 June (World Environment Day) and publicised these concerns.