Sources in the probe team said that documents were recovered from a guest house in Ranchi where suspected IM terrorists had been staying.
The documents showed the places where bombs had to be planted around Bodh Gaya, the highest seat of Buddhism, they said.
As many as 10 explosions had rocked Mahabodhi Temple complex on July seven this year in which five people including two Budhhist monks were injured. Three other bombs did not explode.
During raids in Ranchi yesterday, the probe teams recovered documents which indicated involvement of IM module in the Bodh Gaya blasts.
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There are some abbreviations on the documents about the people who had planted the bombs at Bodh Gaya, the sources said, adding that the same were being analysed to nab the culprits.
Security agencies had averted a possible terror attack when they had recovered nine live bombs fitted with timers from a lodge in Ranchi. The devices matched with those used in the Patna blasts that killed six people and left over 80 wounded on October 27.
Another accused Imitiaz Ansari arrested in connection with the Patna blasts also belonged to Ranchi, while the prime suspect Ainul alias Tarique who died at Indira Gandhi Institute of Medical Sciences hospital in Patna following fatal injuries, also hailed from Ranchi.