Original sentence: The Pallava dynasty existed between the 2nd and 9th centuries CE, ruling a portion of what is today southern India.They gained prominence after the eclipse of the Satavahana dynasty, whom the Pallavas served as feudatories
Edited sentence: Initially they ruled southern Andhra Pradesh, also known as Palnadu, situated in the Guntur district of Andhra Pradesh.Later they extended their rule to Tamil regions and established their capital at Kanchipuram around the 4th century.The Pallava dynasty (Telugu: పల్లవులు; Tamil: பல்லவர்)  existed between the 2nd and 9th centuries CE, ruling a portion of what is today southern India.The Pallavas became independent after the decline of Satavahana dynasty in Amaravati.They gained prominence after the eclipse of the Andhra Satavahana dynasty, whom the Pallavas served as feudatories