The case was handed over to the National Investigating Agency (NIA) which had prepared sketches as well as announced a reward for information leading to cracking the case.
During raids in Ranchi yesterday, the probe teams recovered documents which indicated involvement of IM module in the Bodh Gaya blasts.
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.
