"Government is unable to control cow vigilantes as again one Ummar (Khan) has been killed in Alwar while transporting cows and calves," Sharad Yadav said in his tweet.
He said it is "unfortunate that such incidents are increasing" and added that the "farming community is also being affected badly" by this "inhuman" act.
Khan, 35, was allegedly shot dead by cow vigilantes in Govindgarh on suspicion of smuggling the animals while another person was injured.
Khan's dismembered body was found on the railway tracks in Govindgarh on Friday.
On April 1, 55-year-old dairy farmer Pehlu Khan from Haryana was assaulted by cow vigilantes on National Highway-8. Two days later he succumbed to his injuries.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)