The rally continued after BJP leaders appealed for peace and calm.
Modi flew into this pilgrim town in Bihar in a chopper to address the second rally in the state today after his address in Sasaram, where outgoing Lok Sabha Speaker Meira Kumar is the Congress candidate.
Modi had earlier in the day addressed a rally at Gumla in Jharkand.
The BJP Prime Ministerial candidate's previous rally in Gandhi Maidan in Patna on October 27 last was rocked by serial blasts minutes before he began his address.
A tight security cover was thrown at the rally here after Maoists blew up two mobile towers exploding powerful bombs in two areas of Gaya district ahead of Modi's rallies.