Ruler of which dynasty built the famous Iron pillar in Delhi?

The correct answer is Gupta.

Key Points

• The Iron Pillar at Mehrauli in Delhi is believed to record the achievements of Chandragupta II.
• The iron pillar at Mehrauli, Delhi, is a remarkable example of the skill of Indian crafts persons.
• It is made of iron, 7.2. m high, and weighs over 3 tonnes.
• It was made about 1500 years ago.
• We know the date because there is an inscription on the pillar mentioning a ruler named Chandra, who probably belonged to the Gupta dynasty.

Additional Information 

• Guptas established a small kingdom in Magadh at the beginning of the 4th century.
  • Samudragupta was succeeded by his son Chandragupta II Vikramaditya during this period of time
  • Pataliputra, an ancient city presently known as Patna, was the capital of the Gupta dynasty.
  • The city was favored due to its central location which enabled easy trade and expansion of the empire.
• The Pallavas emerged as a formidable power in the South around the 4th century AD and were at the height of their power in the seventh century AD.
  • They built great cities, centres of learning, temples, and sculptures and influenced a large part of Southeast Asia in culture.
  • Narasimhavarman I was considered the greatest Pallava king who defeated and killed Pulakesin II the ruler of Badami Chalukya and captured Badami and was titled “Vatapikonda”.
  • He was also known as Mamallan (great wrestler) and Mamallapuram was named after him where he built the famous rath temples (Sapt Pagoda).
  • Aparajita Varman was the last ruler of the Pallava dynasty.
• The Pushyabhuti Dynasty (c. 500 CE - 647 CE) rose after the downfall of the Gupta Empire (3rd century CE - 6th century CE) in the 6th century CE in northern India.
  • The core area of their kingdom was situated in what is now the state of Haryana in India with the capital at Sthanishvara or Thaneshvara.
  • The most notable ruler of this dynasty was its last ruler, Emperor Harshavardhana, or Harsha (r. 606-647 CE). 
  • The capital of Harshavardhana's Empire was Kannuaj. He ruled from 606 AD to 647 AD.
  • His Empire extended from Punjab to northern Orissa and from the Himalayas to the bank of the Narmada River.
  • Nagabhata I was an Indian king who founded the imperial Gurjara Pratihara dynasty.
  • He ruled the Avanti region in present-day Madhya Pradesh, from his capital at Ujjain.