The Times of India reported that the police charge sheeted Khan's sons Irshad, 25, and Arif (22) under sections 5, 8 and 9 while Pehlu under section 6 of the Rajasthan Bovine Animal (Prohibition of Slaughter and Regulation of Temporary Migration or Export) Act, 1995.
The charge sheet against Pehlu was prepared on December 30 last year, 13 days after Chief Minister Ashok Gehlot's government came into power in Rajasthan.
However, on Saturday, Gehlot said the charge sheet was filed based on the investigation conducted during the BJP government.
In 2018, the previous BJP government in the state had filed a similar charge sheet against two associates of Pehlu, who were also attacked by the mob.
There were two FIRs registered in the case. One was against the mob for beating him to death and second against him and his family for transporting cattle (cow) illegally out of the state.
The police had earlier given a clean chit to the six people accused of lynching. The police's decision was reportedly based on statements of the staff of a cow shelter and mobile phone records.
Pehlu Khan, a dairy farmer from Haryana, was attacked on April 1 by cow vigilantes near Behror in Alwar and brutally lynched on the suspicion of transporting cattle in pick-up trucks. He succumbed to the injuries two days after being admitted in a hospital.
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Pehlu and his sons had claimed that they were transporting cows which were purchased in Jaipur to Nuh in Haryana. Pehlu's family had claimed that they had valid documents to transport cows. However, the police said they didn't have the required permit.