Northern India was conquered by the Gupta empire in the 4th and 5th centuries, which was India's classical age. The Parivrajaka and the Uchchhakalpa dynasties ruled as feudatories of the Guptas in Madhya Pradesh. The Vakataka dynasty were the southern neighbors of the Guptas, ruling the northern Deccan plateau from the Arabian Sea to the Bay of Bengal. These empires collapsed towards the end of the 5th century.