• Ranking Among Indian Billionaires: Alakh Pandey has joined the ranks of the 229 Indian billionaires who made it onto this year's list.
• Global Ranking: Globally, he has secured the 3,332nd position.
• Reason for Success: This significant surge in his wealth follows the successful IPO and stock market listing of his company, Physics Wallah, in November 2025.
• Young Entrepreneur: At the age of 33, he is one of the youngest Indian billionaires to feature on this list.
• Co-founder: Alongside him, Physics Wallah co-founder Prateek Maheshwari (Prateek Boomb) has also secured a place on this billionaires list.
• India now ranks third globally with 229 billionaires, with Mukesh Ambani and Gautam Adani remaining the first and second wealthiest Indians, respectively.
• Savitri Jindal, Chairperson of the O.P. Jindal Group, has become the country's third-wealthiest woman.
• She represents the group of 20 female billionaires from India.
• Among all Indian billionaires, the highest earnings were recorded by the country's fourth-wealthiest individual, Lakshmi Mittal, who is associated with the steel industry.

• Established in 1993, the U.S. Green Building Council (USGBC) is a leading non-profit organization dedicated to promoting sustainable and eco-friendly buildings.
• Through its renowned LEED (Leadership in Energy and Environmental Design) rating system, it guides the construction of energy-efficient, healthy, and resilient buildings.

• The Rama Mandi–Sadda Singhwala new broad-gauge railway line project is a major infrastructural initiative undertaken as part of the Mansa–Bathinda doubling project.
• Approximately 43 kilometers in length, this project is estimated to cost around ₹1,118 crore.

• This legislation prohibits all online games in which money or any other item of value is wagered (bet upon), regardless of whether they are based on skill or chance.
• Three-Tiered Regulatory Framework: This law distinctly categorizes e-sports (competitive gaming), online social games (entertainment), and real-money games.

• He will succeed Pradeep Kumar Rawat.
• Doraiswami is a 1992-batch officer of the Indian Foreign Service.
• He currently serves as India's High Commissioner to the United Kingdom.
• He is considered an expert on China-related affairs and possesses a good command of the Mandarin language.

• Target and Potential: The potential to boost sports goods exports to $8.1 billion (approximately an 11% share) by 2036.
• Current Status: Currently, India's share in global sports goods exports stands at a mere 0.5% ($275 million).
• Key Hubs: MSMEs (Micro, Small, and Medium Enterprises)—primarily located in Jalandhar and Meerut—serve as the hubs of this industry.
• Challenges: High raw material costs, fragmented production, obsolete machinery, and a shortage of testing laboratories.
• Strategic Roadmap: Recommendations include a targeted investment of ₹7,500 crore between 2027 and 2031, the development of modern manufacturing clusters, and a strong emphasis on boosting exports under the "Brand India" initiative.

• In this index, India ranks 116th out of 147 countries, marking a slight improvement from its 118th position last year.
• Top 5 Countries: Following Finland are Iceland (2), Denmark (3), Costa Rica (4), and Sweden (5).
• Least Happy: Afghanistan remains at the bottom of this list.
• Status of Neighboring Countries: According to the report, Pakistan and certain other neighboring countries rank higher than India in terms of happiness.
• Area of ​​Concern: This year's report identifies the increasing use of social media as a major factor behind the decline in happiness among the youth.

Key Bases (Parameters) for Ranking:

• GDP per capita
• Healthy life expectancy
• Social support
• Freedom to make life choices
• Generosity
• Perception of corruption
• This report has been jointly released by the Wellbeing Research Centre at the University of Oxford, Gallup, and the United Nations Sustainable Development Solutions Network (SDSN).

Location: Banda District, Uttar Pradesh (Bundelkhand Region), Vindhya Mountain Range.

• Main Gates: The fort features seven magnificent gates for entry, prominent among which are the Alamgir Darwaza, Ganesh Dwar, Hanuman Dwar, and Buddhabhadra Dwar.
• It showcases Bundela architecture, comprising palaces, temples, and water tanks.
• Religious Significance: 'Kalinjar' translates to "The Destroyer of Time" (or Death). According to mythology, after consuming the poison that emerged during the *Samudra Manthan* (Churning of the Ocean), Lord Shiva rested at this very spot and attained victory over *Kaal* (Time/Death).
• Construction: This fort has been associated with various dynasties, including the Guptas, Gurjara-Pratiharas, Chandels, and Mughals.
• The Impregnable Fort: It was extremely difficult to conquer. Rulers such as Mahmud of Ghazni, Qutb-ud-din Aibak, and Humayun attempted to capture it but failed.
• Death of Sher Shah Suri: In 1545 CE, the Afghan ruler Sher Shah Suri laid siege to the fort, but he met his death here following a gunpowder explosion.
• Mughal Rule: Eventually, in 1569 CE, Akbar conquered the fort and gifted it to Birbal.
• The British gained control of Kalinjar in 1812, following a siege led by Colonel Martindell and the subsequent surrender of the local ruler, Daryau Singh.
• During the Revolt of 1857, the fort's robust defensive infrastructure played a crucial role in withstanding the rebellion; however, it was ultimately demolished in 1866.

• It is a major biennial (held every two years) indoor track and field competition organized by World Athletics.
• It was first held in 1985 in Paris, France.
• Bahadur Singh Saggu — President, Athletics Federation of India