Prime Minister Narendra Modi on Thursday lashed out at the increasing violence by cow vigilantes in the name of cow protection in the country. While speaking at the Sabarmati Ashram , Modi said, 'No one spoke about protecting cows more than Mahatma Gandhi and Acharya Vinoba Bhave. Yes. It should be done. ButKilling people in the name of Gau Bhakti is not acceptable.