Complex sentence: The Mauryan Empire, which originated from Magadha in 325 BC, was founded by Chandragupta Maurya, who was born in Magadha, and it had its capital at Pataliputra (modern Patna).
Split into simpler sentences: The Mauryan Empire, which originated from Magadha in 325 BC, was founded by Chandragupta Maurya, who was born in Magadha. It had its capital at Pataliputra (modern Patna).