Short answers, pulled from the story.
The first modern humans to set foot on the Indian subcontinent arrived approximately 55,000 years ago. These early Homo sapiens emerged from Africa and traversed the warm coastal lands of the Persian Gulf and northern Indian Ocean before entering the region.
The Indus Valley Civilisation was the first urban culture in South Asia to develop in North India by 2500 BC. Cities like Kalibangan in Rajasthan and Rakhigarhi in Haryana were already engaged in complex urban planning and long-distance trade during this period.
A general named Qutub-ud-din Aibak declared his independence and established the Sultanate of Delhi in 1206. This sultanate controlled much of North India and made many forays into South India while repulsing Mongol raiders in the 13th century.
The Indian Rebellion of 1857 was suppressed by 1858 after seeing intense fighting in key northern cities like Delhi, Kanpur, Lucknow, Jhansi, and Meerut. This revolt led to the dissolution of the East India Company and the direct administration of British territories in India by the British Crown.
The Union Territory of Delhi was renamed the National Capital Territory of Delhi in 1991. This change granted the region a legislative assembly with limited powers following decades of administrative evolution.
Dras in Ladakh is claimed to be the second-coldest inhabited place on the planet with a recorded low of minus 60 degrees Celsius. This location experiences heavy to moderate snowfall and is part of the Montane ecosystem in North India.