Depends on the sect and sampradaya, and the self-discipline of individuals. It's one of the few subjects that seems to get debated ad nauseum. (over and over) I'm a vegetarian, but harboring hate or heavy criticism for those who aren't isn't the way of the Hindu. We are a tolerant loving people. So I tolerate, hoping that some day the other person will see fit to practice. In time, I hope all will. As for scriptures, they do vary. Vegetarians will quote scripture that will support them, and non-vegetarians will do the opposite.
Please go through this discussion you will get your answers. Click on the link Should Hindus be vegetarian or non-vegetarian ?
There is as such no scripture or written proof, which prohibits Hindus for consuming non-veg food. This too is a personal choice and varies from one individual to other.
