However, in South India, especially in hot humid western coastal region porches veranda style porches are very common especially in states like Kerala and Konkan. There was a Dutch influence in state of Kerala and Portuguese influence in state of Goa. Konkan area has it's Kokan traditional architecture which is influenced by nature. It is sustainable, cost effective too. Konkan is west coastline of India. It stretches from Raigad to Manglore. Sahyadri mountain marks it’s eastern boundary ,where as Arabian sea is on western side. In Konkan traditional architecture veranda is called as "Otti", a semi-open space with low height seating covered with a permanent roof. Transition space leading to an enclosed environment. Sometimes sides are covered by wooden jali walls. Otti generally is the most comfortable space considering Hot and Humid climate of the Konkan region; it offers temporary resting space to house members during the afternoon and evening time.