Prime Minister Narendra Modi arrived here on Sunday to address a public meeting, the second after last month's Muzaffarpur rally, ahead of the coming Bihar assembly polls.
"Modi reached Gaya in an Indian Air Force aircraft," a district official said.
Bharatiya Janata Party president Amit Shah and several union ministers and senior party leaders received Modi.
According to police, nearly 5,000 security personnel have been deployed for the rally.