Details regarding Hell in Hinduism are found in the Puranas especially the Garuda Purana. Krmibhojanam Hell is mainly used to punish those people who waste food and indulge in excesses while not providing food to those who are in need of it. In the Krmibhojanam Hell, people are thrown into pits filled with worms, insects and snakes.
Krmibhojanam means food for worms.
It is mentioned that once the bodies of the sinners are eaten by the worms, they are provided with new bodies which are also eaten up by worms. This cycle continues till the end of their punishment.