The Gujarat High Court on Tuesday directed the Central Bureau Investigation (CBI) to probe Right to Information (RTI) activist Amit Jethwa's murder case.
Jethwa was shot dead by unidentified men in Ahmedabad near the Gujarat High Court in 2010.
He was fighting against illegal mining in the Gir Sanctuary area.
Jethwa, had filed a Public Interest Litigation (PIL) against alleged illegal mining in the Gir Sanctuary, which is said to be backed by some politicians.
According to reports, Jethwa´s petition accused Junagadh Bharatiya Janata Party (BJP) MP Dinubhai Boghabhai Solanki and his relatives of carrying out alleged mining activities in Una and Kodinar areas of Saurashtra.
The Solankis were also running illegal mines and stone crushers in a village by the Gir forests, the PIL said.
The green crusader had drawn the ire of the politicians of the Saurashtra region for his crusade against illegal mining.
Jethwa´s family earlier alleged that Dinubhai murdered the RTI activist.
The Gujarat Police Crime Branch, however, gave a clean chit to Dinubhai.
Jethwa´s father in Oct 2010 filed a petition in the Gujarat High Court seeking CBI probe into the incident.