Azam Khan demands nationwide ban on animal slaughter

Samajwadi Party leader Azam Khan demanded uniformity in laws and said that there should be a nationwide ban on slaughter of animals. He said that cow slaughter should be banned across the country. Why is it so that it is legal in states like Kerala, West Bengal and Tripura but not in other states?. He further stated that he is not in support of banning slaughter but for very long, he has been saying this that they should stop slaughter.