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Thursday, April 9, 2026
TopicThe Great Trigonometrical Survey of India

Topic: The Great Trigonometrical Survey of India

Chennai vs Bengaluru—where did the Great Trigonometrical Survey of India begin?

The British wanted to understand the length and breadth of the Indian peninsula. The answer was a 100-year-long survey that used triangulation to map vast distances.

Trigonometry may be schooltime misery, but it’s what first helped us see India right

Here's how trigonometry helped India's colonial rulers draw up the subcontinent's first map in the 19th century.

On Camera

India has 291 homoeopathic colleges in 2026, says Minister of Ayush Prataprao Jadhav

The World Homoeopathy Day 2026 is an opportunity to reassure that traditional medical systems remain accessible, and integral to a resilient, inclusive, and future-ready healthcare system.

Data centre gold rush risks blackouts, central electricity body warns states against tripping grids

India’s fast-growing data centre sector may strain state electricity networks; Central Electricity Authority has urged Maharashtra, Andhra Pradesh, Telangana and Tamil Nadu to boost capacity.

Theaterisation in play: Air Headquarters to control strategic assets  

Exclusive: Theaterisation proposal has been stuck over how limited air assets would be divided. Consensus reached on division of air assets among 3 theatres, it is learnt.

China insulated itself against energy shocks. India is ‘all talk, no walk’

China patiently invested capital, skill and technology in coal gasification. Unlike it, we won’t move from words to action. As crude prices decline, we lose interest.