The Aindra (of Indra) school of Sanskrit grammar is one of the eleven schools of Sanskrit grammar mentioned in Pāṇini's Ashtadhyayi. It is named after Indra as a reference to Lord Indra, the king of deities in Hindu mythology. Arthur Coke Burnell, a renowned orientologist, in his 1875 book, "On the Aindra school of Sanskrit grammars", describes this school. Burnell believed that most non-Pāṇinian systems of Sanskrit grammar were traceable to this school of grammar, believed to be the oldest and reputed to be founded by Indra himself.