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Tuesday, November 18, 2025
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

We celebrate Harappa excavation—and dismiss Keeladi, Sinauli archaeological digs as politics

In the storm around Sinauli, many academics dismissed claims of chariots being found. And the public misinterpreted the chariots as a device planted by the govt to fortify Hindutva.

Naidu matches Jagan’s Rs 13L crore investment playbook, with a ‘speed of doing business’ caveat

Naidu’s summit brings in MoUs on same scale as Jagan’s, but CM says his plans built on speed, certainty & investor trust, with escrow accounts, simplified incentives & real-time oversight.

Drone manufacturer ideaForge wins orders worth over Rs 100 crore from Army

ideaForge has formed a joint venture to manufacture and market UAVs in the US. Its Q6 UAV is now included in NATO and allied procurement systems.

INDIA has a Congress-sized hole. And the fix begins with a little humility

Without a Congress revival, there can be no challenge to the BJP pan-nationally. Modi’s party is growing, and almost entirely at the cost of the Congress.