GK One-Liners

What: World Water Day (WWD) is observed every year on 22 March. It was established by United Nations General Assembly (UNGA) Resolution A/RES/47/193 adopted on 22 December 1992, with the first observance held on 22 March 1993. The 2026 theme is ‘Water and Gender: Where Water Flows, Equality Grows’, spotlighting the disproportionate burden water scarcity places on women and girls.

How: The day is observed globally through campaigns, policy events, and water-sector conclaves. In India, the Ministry of Jal Shakti organises events including the World Water Day Conclave (to be held 23 March 2026 at Dr. Ambedkar International Centre, New Delhi). Key crisis statistics to anchor: over 2 billion people lack safely managed drinking water; 3.6 billion face water scarcity for at least one month per year; and 447 million children attend schools without clean water access.

Why: WWD is a standard entry in UPSC Prelims under Environment and International Affairs — expect questions on the founding resolution number, the year of first observance, and annual themes. The gender-water nexus also connects to GS-II social justice and Sustainable Development Goals (SDGs), particularly SDG-6 (Clean Water and Sanitation).

What: Jal Jeevan Mission (JJM) is India’s flagship rural drinking water scheme under the Ministry of Jal Shakti, aimed at providing functional household tap (Har Ghar Jal) connections to every rural home. JJM 2.0 extends the mission to 2028 with a total Phase 2 allocation of Rs 8.69 lakh crore, building on the infrastructure laid in Phase 1 (launched August 2019). The formal handover of rural water supply infrastructure to Gram Panchayats (GPs) is called Jal Arpan Diwas, strengthening community ownership.

How: Implementation involves state governments, district water and sanitation committees, and Women Self-Help Groups (SHGs), who are responsible for water quality testing and maintenance at the village level. Progress is tracked on the Sujalam Bharat portal, which enables real-time online monitoring of tap connections and water quality data across rural India.

Why: JJM is a high-frequency scheme in UPSC Prelims and GS-II Mains (Governance, Social Justice). Key anchors: launched under Jal Shakti Ministry; targets all rural households; extended to 2028; Women SHG involvement; Sujalam Bharat portal for monitoring; and the concept of Gram Panchayat-level ownership through Jal Arpan Diwas.

What: The Central Board of Direct Taxes (CBDT) notified the Income Tax Rules 2026 on 20 March 2026 (via Gazette notification G.S.R. 198(E)) under the new Income-tax Act, 2025, effective from 1 April 2026. This replaces the Income-tax Act 1961, a 64-year-old legislation, marking a comprehensive overhaul of direct tax law. The new framework introduces 190 revised forms and replaces the concepts of ‘Financial Year’ and ‘Assessment Year’ with a single unified term: ‘Tax Year’.

How: The new rules also revise employee allowance limits significantly — the Education Allowance is raised from Rs 100 to Rs 3,000 per month per child, and Hostel Allowance from Rs 300 to Rs 9,000 per month per child. House Rent Allowance (HRA) is retained, with the metro city exemption (up to 50% of salary) continuing for Mumbai, Delhi, Chennai, Kolkata, and other designated metro cities.

Why: This is a landmark tax policy reform with high GS-III (Economy) relevance. UPSC may test: CBDT’s role under the Finance Ministry, the transition from AY/FY to ‘Tax Year’, revised allowance figures, and the replacing of the 1961 Act. The effective date (1 April 2026) coincides with the new financial year — a frequently tested chronological anchor.

What: The Himalayas are the world’s third-largest freshwater ice store, after the Arctic and Antarctic, making them often called the “Third Pole.” Himalayan glaciers and snowfields feed major river systems including the Ganga, Yamuna, Brahmaputra, Indus, Mekong, and Yangtze. Approximately 680 million people depend on meltwater from these glaciers for drinking, irrigation, and hydropower. The cryosphere (all frozen water on Earth) stores around 70% of Earth’s total freshwater.

How: Glacier melt is accelerating due to rising temperatures driven by climate change. The United Nations designated 2025 as the International Year of Glaciers’ Preservation (jointly by WMO — World Meteorological Organization — and UNESCO — United Nations Educational, Scientific and Cultural Organization), and the Decade of Action for Cryospheric Sciences runs from 2025 to 2034. The UN also proclaimed 21 March as World Day for Glaciers to raise awareness.

Why: This topic cuts across GS-III (Environment & Ecology, Disaster Management) and GS-I (Geography). UPSC tests knowledge of: the Third Pole concept, rivers fed by glacial melt, cryosphere’s share of Earth’s freshwater, India’s vulnerability to glacial lake outburst floods (GLOFs), and UN framework initiatives such as the International Year and Decade of Action.

What: The Bharat Innovates Deep-Tech Pre-Summit was held on 21–22 March 2026 at IIT (Indian Institute of Technology) Bombay Research Park. Union Education Minister Dharmendra Pradhan addressed the summit, which covered 13 strategic domains: Healthcare, Space and Defence, Semiconductors, Artificial Intelligence (AI), Energy, Agriculture, Blue Economy, and others. The event was announced by Prime Minister Narendra Modi in the context of the India-France Year of Innovation.

How: The summit functions as a policy-industry-academia interface to accelerate India’s deep-tech ecosystem. It brings together startups, researchers, investors, and policymakers to identify bottlenecks and opportunities across high-priority technology verticals. The India-France Year of Innovation provides bilateral momentum — France is a key partner in space, nuclear, and defence technology cooperation.

Why: Deep-tech policy is a growing GS-III (Science & Technology, Economy) area in UPSC. Key anchors: IIT Bombay venue; 13 domains especially Semiconductors and AI (high-frequency topics); India-France cooperation context; and the Education Ministry’s role in nurturing innovation. Questions may also link to the National Research Foundation (NRF) and the National Education Policy (NEP) 2020’s emphasis on research.

What: Bihar Diwas (Bihar Foundation Day) is observed on 22 March every year to mark the formation of Bihar as a separate administrative unit. On 22 March 1912, Bihar was carved out of the Bengal Presidency by the British colonial administration. In 2026, Bihar celebrates its 114th Foundation Day. The state capital is Patna (historically known as Pataliputra).

How: Bihar’s historical significance is immense: it was the core of the ancient Magadha Empire, home to the Maurya dynasty (Chandragupta Maurya, Ashoka), and the birthplace of Buddhism — Bodh Gaya, where Siddhartha Gautama attained enlightenment, is in Bihar. It also housed the ancient Nalanda University, one of the world’s first residential universities. These historical anchors make Bihar a recurring feature in GS-I History and Culture questions.

Why: Bihar Diwas on 22 March is a useful current affairs–static GK bridge. UPSC Prelims tests state formation dates, colonial administrative reorganisations, ancient empires, and Buddhist heritage sites. Key facts to retain: formed 22 March 1912; carved from Bengal Presidency; 114th Foundation Day in 2026; connection to Magadha, Maurya dynasty, Buddhism, and Nalanda.