Police said Monday a man was detained and interrogated following the serial bombings at the Mahabodhi temple complex here in Bihar after his identity card was found at the shrine.
Vinod Mishtri was taken into custody Sunday evening from a village in Gaya.
"Police are interrogating him after his identity card was found in the temple," a district police official said.
Police officials in Bodh Gaya said more arrests were likely on the basis of CCTV footage.
Police officials said they had spotted "suspicious activity" on CCTV footage and efforts were on to identify the people on camera.
Officials said 15 of the 16 CCTV cameras installed at the temple premises were functional.
Nine explosions rocked the temple complex Sunday, injuring two monks but not causing much damage to the structure. The government called it a terror attack.