Apparently Alexander the great conquered it and gave it to the local King Porus.
Another view:
That is the conundrum. The Persian Empire had ceased to exist by then and Darius had been murdered by his own princes. Alexander was in fact attacking King Porus to strip him of the northern Indus Valley. He allegedly defeated Porus and amazingly gave it back to him and threw in the added gift of the kingdom of his own loyal ally King Taxiles who had helped him defeat Porus. This is a befuddled story which suggests that Alexander didn't defeat Porus or conquer the Indus Valley.
Nile, Tigris, Euphrates were the largest, but there were dozens of others visible in a map of the Middle East, Pakistan and Central Asia.
Nile, Euphrates, Tigris, Indus.
There are several eras of Magadha - if you are asking about the Maurya Empire, it was established as far as the Indus valley by 322 BCE, by which time the Persian Empire had been taken over by Alexander the Great's Macedonian Empire which itself had already unravelled in the east by the time of his death in 323 BCE. So no, the Persian Empire had ceased to exist by the time the Mauryan Empire took over the Indus. Alexander was fortunate his soldiers refused to go east into India as he would have run into the overwhelming power of the expanding Mauryans and been exterminated.
They took over the Babylonian Empire, then added to it by taking over Asia Minor, Central Asia, The Indus Valley, Libya, Egypt and northern Greece.
Its ability to defeat opposing forces, establish stable government in the conquered territories, and defend them against external aggression. In the west, it extended beyond the coast of Greece, going as far as Egypt and Libya.
517-509 BCE: India - Darius the Persian conquers the INDUS VALLEY region, making the area a province of the Persian Empire.
He conquered Greece, Egypt, Persia, and part of the Indus Valley in India
The Persian Empire incorporated the Indus Valley.
Cyrus the Great - Middle East, Central Asia. Cambyses - Libya and Egypt. Darius the Great - Indus Valley, Thrace.
Nile, Tigris, Euphrates were the largest, but there were dozens of others visible in a map of the Middle East, Pakistan and Central Asia.
The Persian Empire
Assyrian Empire.
The Indus River.
Nile, Tigris, Euphrates, Indus.
Nile, Euphrates, Tigris, Indus.
Cyrus II of Persia (600 BC - 530 BC) established the Achaemenid Empire (c. 550-330 BC), which was the largest empire in history, and stretched from the Balkans in the west to the Indus Valley in the east. His successors Darius and Xerxes led the empire against the Greeks on several occasions. The Achaemenid Empire was partly conquered by Alexander the Great, and was succeeded by the Seleucid Empire.
There are several eras of Magadha - if you are asking about the Maurya Empire, it was established as far as the Indus valley by 322 BCE, by which time the Persian Empire had been taken over by Alexander the Great's Macedonian Empire which itself had already unravelled in the east by the time of his death in 323 BCE. So no, the Persian Empire had ceased to exist by the time the Mauryan Empire took over the Indus. Alexander was fortunate his soldiers refused to go east into India as he would have run into the overwhelming power of the expanding Mauryans and been exterminated.