The Anti-Terrorist Squad (ATS) has scrutinised all the call details of the accused beginning 15 days prior to the incident but no evidence of any "larger conspiracy" has been found so far, it said.
The government made this submission while responding to a petition seeking a CBI probe into the incident which had triggered massive disaffection among dalits.
A division bench of Chief Justice R Subhash Reddy and Justice VM Pancholi today reserved its order after hearing arguments of both sides.
Petitioner Ratna Vora, however, said the CID's probe was "biased and full of lacunae" as several accused, including the alleged mastermind, are out on bail with the government not even challenging their release.
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She said the incident should be looked at from the angle of a "larger conspiracy" and the role of the cow vigilante groups, including their source of funding, should be probed.
A group of dalits was publicly thrashed by vigilantes for skinning a dead cow at Mota Samadhiyala village under Una taluka of Gir Somnath district on July 11.
The matter was probed by the CID which had arrested over 30 people and submitted a charge sheet in September.
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