break even within 8 years of operation, assuming that the estimated ridership in the DPR is achieved. Stations KMRL has proposed an elevated route spanning from Aluva to Pettah with 23 stations. All platformss are long. There are 17 sharp curves along the route; the sharpest curve have a radius of . Design Egis India was responsible for the design of the stations such as floors and doors, and the Indian Institute of Architecture (Kochi Chapter) developed the designs of the roof and the interior of the stations. The IIA presented the designs of 14 stations to the KMRL on 14–15 March 2014. The interiors and exteriors of the Kochi Metro stations are decorated with references to local culture. However, the traditional nālukettu architectural style was not structurally feasible. According to a KMRL official, "It [stations] will be designed in such a way that it reflects the Kerala style of architecture with each of the 22 stations reflecting a regional theme. ... the stations will reflect an independent adaptation of the state's culture to give it a distinct look". KMRL officials stated, "Our effort is to highlight the uniqueness of the state, especially to outsiders, but the station buildings won't be an exact replica of the Kerala model of architecture. The station designs are contemporary but inspired by socio-cultural themes. The kettuvalam or houseboat, for example, widely used in the backwaters of the state, is the theme of one of the stations, bearing descriptions of how it is made with a model exhibited alongside." The Western Ghats that run along most of the Kerala-Tamil Nadu border forms a common design theme at all the stations. The design of each individual station is a variation on this common theme. Aluva station's theme is Kerala's natural beauty and the station's interiors depict the Periyar and the other major rivers in the state. The walls of the Pulinchodu station feature flora and fauna of the Western Ghats. Kalamassery station depicts rare species of the mountain range. The theme of CUSAT station is the state's maritime history, and that of Pathadipalam station is the fish of the Western Ghats. Spices of Kerala is the theme of the Edapally station, while the cultural and artistic heritage of Kerala forms the theme of the Changampuzha Park station. Palarivattom station features images of the flowers of the Western Ghats. The Jawaharlal Nehru Stadium station will depict the