1. The Aadi Kala period of Hindi literature spans from 1050 CE to 1375 CE, during the rule of Rajput kings. 2. The literature of this time was written in various dialects of Apabhramsa languages and focused on raso (aesthetic) themes including erotic poetry. 3. The literature has certain defining features including the influence of Sanskrit, use of imagery and figures of speech, and focus on royal patrons and rulers.