The attack on the fort at Bobbili fort made by French General Bussy in 1757 is one of the most memorable episodes in Indian history. Although the French artillery field-pieces at once made practicable breaches in the mud walls of the fort, the defenders held out with desperate valour. Two assaults were repulsed after hours of hand-to-hand fierce fighting; and when, after a fresh bombardment, the garrison saw that their case was hopeless, they killed their women and children, and only succumbed at last to a third assault because every man of them was either killed or mortally wounded. An old man, however, crept out of a hut with a child, whom he presented to Bussy as the son of the Ranga Rao.
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Three nights later three followers of the chief of Bobbili along with their general Tandra Paparayudu crept into the tent of the raja of Vizianagram and stabbed him to death. The child, Chinna Ranga Rao, was invested by Bussy with his father's estate, but during his minority it was seized by his uncle. After a temporary arrangement of terms with the raja of Vizianagram the old feud broke out again, and the Bobbili chief was forced to take refuge in the nizam's country. In 1794, however, on the break-up of the Vizianagram estate, Chinna Ranga Rao was restored by the British, and in 1801 a permanent settlement was made with his son. The title of raja was recognized as hereditary in the family; that of maharaja was conferred as a personal distinction on Sir Venkataswetachalapati Ranga Rao, K.C.I.E., the adopted great-great-grandson of Chinna Ranga Rao.