<P> Relations between the people of Afghanistan and India traces to the Indus Valley Civilisation . Following Alexander the Great's brief occupation, the successor state of the Seleucid Empire controlled the region known today as Afghanistan . In 305 BCE, they ceded much of it to the Indian Maurya Empire as part of an alliance treaty . </P> <P> Alexander took these away from the Aryans and established settlements of his own, but Seleucus Nicator gave them to Sandrocottus (Chandragupta), upon terms of intermarriage and of receiving in exchange 500 elephants . </P> <P> The Mauryans brought Buddhism from India and controlled the area south of the Hindu Kush . Their decline began 60 years after Ashoka's rule ended, leading to the Hellenistic reconquest of the region by the Greco - Bactrians . Much of it soon broke away from the Greco - Bactrians and became part of the Indo - Greek Kingdom . The Indo - Greeks had been defeated and expelled by the Indo - Scythians in the late 2nd century BCE . Much of Afghanistan has been influenced by Buddhist, Hindu and Zoroastrian cultures until the arrival of Islam in the 7th century . But despite many Afghans accepting the message of Islam, the Muslims and Hindus lived side by side . </P> <P> "Kabul has a castle celebrated for its strength, accessible only by one road . In it there are Musulmáns, and it has a town, in which are infidels from Hind ." </P>

What is the relation between india and afghanistan