Sivagangai was a princely state known for the bravery of:

Velu Nachiyar
Kattapomman
Marudhu Brothers
Puli Thevar

The correct answer is: a) Velu Nachiyar.

Velu Nachiyar was a queen of Sivagangai who fought against the British East India Company in the early 19th century. She is considered a national heroine in India.

Kattapomman was a woman warrior who fought against the British East India Company in the early 19th century. She is also considered a national heroine in India.

The Marudhu Brothers were three brothers who fought against the British East India Company in the early 19th century. They are also considered national heroes in India.

Puli Thevar was a bandit who fought against the British East India Company in the early 19th century. He is not considered a national hero in India.

Velu Nachiyar was born in 1730 in Sivagangai, a princely state in southern India. She was the daughter of Muthu Vaduganatha Thevar, the ruler of Sivagangai. Velu Nachiyar was married to Muthukrishna Thevar, the son of the ruler of Pudukkottai.

In 1772, the British East India Company invaded Sivagangai. Velu Nachiyar’s husband was killed in the invasion, and she was taken prisoner. She was released after a few months, but she was determined to avenge her husband’s death.

In 1780, Velu Nachiyar raised an army and attacked the British East India Company. She defeated the British at several battles and recaptured Sivagangai. She ruled Sivagangai for the next 10 years, until her death in 1790.

Velu Nachiyar is considered a national heroine in India for her bravery and her fight against the British East India Company. She is also known as the “Queen of the South”.