Rani Velu Nachiar and her daughter Vellachi Nachiar lived under the protection of Hyder Ali at Virupakshi near Dindigul. Frustrated by the joining of forces against him, the Nawab ordered that Velu Nachiar and Marudhu Brothers were permitted to return to Sivaganga and rule the country subject to payment of Kist to the Nawab. Abiding by this Order, Rani Velu Nachiar accompanied by Marudu brothers and Vellachi Nachiar entered Sivaganga. An agreement was reached where by Rani Velu Nachiar was permitted to govern the Sivaganga Country and Chinna Marudu, the younger was appointed her minister and the elder Vellai Marudu as the Commander-in-chief. Thus the widow Queen Velu Nachiar succeeded her husband in 1780.The Queen Velu Nachiar granted powers to Marudhu Brothers to administer the country in 1780. Velu Nachiar died a few years later, but the exact date of her death is not known (it was about 1790).
Marudu brothers are the sons of Udayar Servai alias Mookiah Palaniappan Servai and Anandayer alias Ponnathal.The Marudu Brothers served under Muthu Vaduganatha Thevar. Later they were elevated to the position of Commanders. Boomerangs are peculiar to India. Two forms of this weapons are used in India. These weapons are commonly made of wood. It is cresent-shaped on end being heavier than the other and the outer edge is sharpened. Their name in Tamil is VALARI stick. It is said that Marudu Brothers were experts in the art of throwing the valari stick. It is said that Marudus used Valari in the POLIGAR wars against the English. The Marudu brothers with 12,000 armed men surrounded Sivaganga and plundered the Nawab's territories. The Nawab on the 10th of March 1789 appealed to the Madras Council for aid. On 29th April 1789, the British forces attacked Kollangudi. It was defeated by a large body of Marudu's troops. He was in close association with Veera Pandiya Kattabomman of Panchalankurichi. Kattabomman held frequent consultations with Marudhus. After the execution of Kattabomman in 17th October 1799 at Kayattar, Chinna Marudhu gave asylum to Kattabomman's brother Oomadurai (dumb brother). He issued an epoch-making Jumboo Deweepa proclamation to the people in the island of Jamboo the peninsular South India to fight against the English whether they were Hindus, Mussalamans or Christians. At last the Marudhu Pandiyars fell a victim to the cause of liberating the motherland from the English supremacy. Marudu Pandiyan the popular leader of the rebels, together with his gallant brother Vellai Marudu were executed on the ruins of fort at Tiruppathur in SIVAGANGA District on 24th October 1801. They showed their determination and spirit at the outset of the final struggle of 1801 by setting their handsome village Siruvayal on fire to prevent its being made use of by the English forces.
Marudu brothers were not only warriers and noted for bravery, but they were very great Administrators. During the period from 1783 to 1801, they worked for the welfare of the people and the Sivaganga Seemai was reported as fertile. They constructed many notable temples (i.e Kalayarkoil) Ooranis and Tanks .