Maharishi worked for whole of his life to ban cow slaughter. In his book "Gau karuna Nidhi," he was the first preacher to justify ban on cow slaughter on economic grounds also. He discussed this issue with several British officers, specially Col. Brooks, political agent at Ajmer. Col. Brooks was deeply impressed by the arguments but he expressed his inability to ban cow-slaughter. Maharishi got prepared a petition, also got it signed by lacs of people and sent it to Queen Victoria to ban cow slaughter.