Shiroor Matha, Krishnapura Matha, Bhandarakeri Matha, Subramanya Matha, Chitrapura Matha, Bhimanakatte Matha. Out of these twelve Madhva Mathas, the first eight are referred to as Ashta Mathas of Udupi. These eight surround the Anantheswara Krishna Hindu temple. These mathas are laid out in a rectangle, the temples on a square grid pattern. The monks in the matha are sannyasis, and the tradition of their studies and succession (Paryaya system) were established by Madhvacharya. Along with twelve mathas, there are ten mathas that are descended through Madhvacharya's direct disciples, Padmanabha Tirtha, Narahari Tirtha, Madhava Tirtha, Akshobya Tirtha and Akshobya Tirtha's disciple Jayatirtha. They are Uttaradi Matha, Vyasaraja Matha, Raghavendra Matha, Sripadaraja Matha, Kanva Matha, Baligaru Matha, Kudli Matha, Tambehalli Matha (also known as Majjigehalli Maṭha), Kundapur Matha, Sagarakatte Matha. Out of the ten, the first three, the Uttaradi Matha, Vyasaraja Matha and Raghavendra Matha , are considered to be the three premier apostolic institutions of Dvaita Vedanta and are jointly referred as Mathatraya . It is the pontiffs and pandits of the Mathatraya that have been the principle architects of post-Madhva Dvaita Vedanta through the centuries. As a matter of fact, these have taken the lion's share in the task of developing and propagating the philosophy of Madhva. For this reason they can unhesitatingly be regarded as the intellectual heirs to the legacy of Madhva, Jayatirtha and Vyasatirtha. The main center of Madhva's tradition is in Karnataka. The monastery has a pontiff system, that rotates after a fixed period of time. The pontiff is called Swamiji, and he leads daily Krishna prayers according to Madhva tradition, as well as annual festivals. The process and Vedic mantra rituals for Krishna worship in Dvaita monasteries follow the procedure written by Madhvacharya in Tantrasara. The succession ceremony in Dvaita school involves the outgoing Swamiji welcoming the incoming one, then walking together to the icon of Madhvacharya at the entrance of Krishna temple in Udupi, offering water to him, expressing reverence then handing over the same vessel with water that Madhvacharya used when he handed over the leadership of the monastery he founded. The monastery include kitchens, bhojan-shala, run by monks and volunteers. These serve food daily to nearly 3,000 to 4,000 monks, students and visiting pilgrims without social discrimination. During succession ceremonies, over 10,000 people are served a vegetarian meal by Udupi bhojan-shalas. Other Dvaita Mathas include: Kashi Math, Varanasi, Uttar Pradesh Gokarna Math,