Who among the following is said to have crossed the Vindhyas in the later Vedic age and aryanise the south ?

Q. Who among the following is said to have crossed the Vindhyas in the later Vedic age and aryanise the south ?
Answer: Agatsya
Notes: During the Later Vedic Age the Aryans thoroughly subdued the fertile plains watered by Yamuna, Ganges and Sadanira. They crossed the Vindhyas and settled in the Deccan, to the north of Godavari. Sage Agastya was the first to cross the Vindhyas.