When did the mauryan and gupta empires begin

The Gupta Empire started in 320 AD while Mauryan Empire started in 322BCE by Chandragupta Mauryan.  

Gupta Empire

A new dynasty emerged in North India in the fourth century. The name of this dynasty was Gupta dynasty. This dynasty ruled for about 300 years. Many areas developed during the reign of this dynasty. The founder of this dynasty was Shreegupta. In the Gupta lineage, rulers like Shreegupta, Ghatotkacha, Chandragupta I, Samudragupta, Ramgupta, Chandragupta II, Skandagupta were born.  

Mauryan Empire

The Maurya dynasty (322-145 BC) was a powerful and great dynasty of ancient India, the Kshatriya dynasty. He ruled in India for 138 years. Its establishment is credited to Chandragupta Maurya and his minister Kautilya. Chandragupta Mauryan, King Bindusara, King Ashoka, Kunala, Dasharatha Maurya, Samprati, Shalishuka, Devavarman, Shatadhanvan, Brihadratha Maurya are the name of Mauryan rulers.