Upapurana

The Upapuranas (Sanskrit: Upapurāṇa) are a genre of Hindu religious texts consisting of a large number of compilations differentiated from the Mahapuranas by styling them as secondary Puranas using a disparaging prefix Upa (secondary). Though, only a few of these compilations originated earlier than most of the extant Mahapuranas, some of these texts are extensive and important.