In Buddhism, Buddha has expressed that killing any sentient being is a sin and that to rear animals for killing and to sell the meat of a killed animal is also a sin. But did not rule out eating meat as a sin, and now a lot of Buddhists has taken the absence of such a restriction as permission to do it. Which will in turn had increased the killing of animals which is a great sin according to Buddhism. However in Mahayana Buddhism meat consumption is clearly forbidden and even in the Theravada Pali cannon there is a lot of evidence to believe that Buddha only allowed the consumption of the meat of naturally died animals and not that of the killed animals for killing is a sin. There seems to be a contradiction in what Buddha allows and does not allow.