Dashakumaracharita

Dashakumaracharita (The narrative of ten young men, IAST: Daśa-kumāra-Carita, Devanagari: दशकुमारचरित) is a prose romance in Sanskrit, attributed to Dandin (दण्डी), written in the seventh to eighth centuries CE. It describes the adventures of ten young men, the Kumaras, who are the sons of princes and royal ministers. The seventh chapter of the Dashakumaracharita contains a specimen of lipogrammatic writing (a species of constrained writing). At the beginning of the chapter, Mantragupta is called upon to relate his adventures. However, during the previous night of vigorous sex, his lips have been nibbled several times by his beloved; as a result, they are now swollen, making it painful for him to close them. Thus, throughout his narrative, he is compelled to refrain from using any labial consonants (प,फ,ब,भ,म).