Complex sentence: Some historians claim the earliest home of the Gangas was the Kongu region in Tamil Nadu accepting in toto the twelveth century Shimoga inscription and further qualify their reasoning with a seventeenth century chronicle called "Kongidesarajakkal".
Split into simpler sentences: Some historians claim the earliest home of the Gangas was the Kongu region in Tamil Nadu accepting in toto the twelveth century Shimoga inscription. They further qualify their reasoning with a seventeenth century chronicle called "Kongidesarajakkal".