on Pāṇini's grammar called Sabdavathara and a commentary on the 15th chapter of a Sanskrit work called Kiratarjunneya by poet Bharavi (who was in Durvinita's court) are ascribed to Durvinita. King Shivamara II is known to have written Gajamata Kalpana. Hemasena, also known as Vidya Dhananjaya authored Raghavapandaviya, a narration of the stories of Rama and the Pandavas simultaneously through puns. Gayachintamani and Kshatrachudamini which were based on poet Bana's work Kadambari were written by Hemasena's pupil Vadeebhasimha in prose style. and Chavundaraya wrote Charitarasara. Architecture The Western Ganga style of architecture was influenced by the Pallava and Badami Chalukya architectural features, in addition to indigenous Jain features. The Ganga pillars with a conventional lion at the base and a circular shaft of the pillar on its head, the stepped Vimana of the shrine with horizontal mouldings and square pillars were features inherited from the Pallavas. These features are also found in structures built by their subordinates, the Banas and Nolambas. The monolith of Gomateshwara commissioned by Chavundaraya is considered the high point of the Ganga sculptural contribution in ancient Karnataka. Carved from fine-grained white granite, the image stands on a lotus. It has no support up to the thighs and is tall with the face measuring . With the serene expression on the face of the image, its curled hair with graceful locks, its proportional anatomy, the monolith size, and the combination of its artistry and craftsmanship have led it to be called the mightiest achievement in sculptural art in medieval Karnataka. It is the largest monolithic statue in the world. Their free standing pillars called Mahasthambha or Bhrahmasthambha are also considered unique, examples of which are the Brahmadeva pillar and Tyagada Brahmadeva Pillar. At the top of the pillar whose shaft (cylindrical or octagonal) is decorated with creepers and other floral motifs is the seated Brahma and the base of the pillar normally has engravings of important Jain personalities and inscriptions. Other important contributions are the Jain basadis' whose towers have gradually receding stories (talas) ornamented with small models of temples. These tiny shrines have in them engravings of tirthankars (Jain saints). Semicircular windows connect the shrines and decorative Kirtimukha (demon faces) are used at the top. The Chavundaraya basadi built in the 10th or 11th century, Chandragupta basadi built in the 6th century and the monolithic of Gomateshwara of 982 are the most important monuments at Shravanabelagola.