The world-class treatises of Kama Sutra compiled by the sage Vatsyayana Mallanaga. Believed to have lived somewhere between the first and sixth century, some sources would say.

The Kama Sutra often regarded as a guide of some sort, a catalogue of sex positions, most of which quite impossible to achieve. Although the book actually presents a guide with several sex positions considered important by peoples of ancient Indian civilizations, as was the Kama Sutra written to be a guide of ethical and social values then. However, it wouldn’t be different, so a remnant of Kama Sutra throughout these centuries was exactly the specific part that talks about sex and sex positions.

The Ananga Ranga is a book written around the 16th century by Kalyana Malla. Conceived to be a manual about sex which would give advice on how a husband should give pleasure to his wife to avoid being tempted to cheat her due to monotony, the Ananga Ranga is somehow based on the Kama Sutra (another well-known Indian work about love). However differently from the Kama Sutra, which presented important insights about Indian social customs, the Ananga Ranga is in its entirety devoted to sex, specially when it comes to sex positions.