Question: In which region the inward dimension of islam was spread by Shah Makhdum Rupos?
Context: Sufism or Taṣawwuf (Arabic: الْتَّصَوُّف [sect]; personal noun: صُوفِيّ - "ṣūfiyy"/ "ṣūfī", مُتَصَوّف - "mutaṣawwūf"), which is often defined as "Islamic mysticism", "the inward dimension of Islam", or "the phenomenon of mysticism within Islam", is a mystical trend in Islam "characterized ... [by particular] values, ritual practices, doctrines and institutions" which began very early on in Islamic history and which represents "the main manifestation and the most important and central crystallization of" mystical practice in Islam.  Although the overwhelming majority of Sufis, both pre-modern and modern, have been adherents of Sunni Islam, there nevertheless also developed certain strands of Sufi practice within the ambit of Shia Islam during the late medieval period. Raees Dynasty, founded by Shah Nadir Raees, ruled the princely state of Chitral from 1320 to 1660.  The Raees dynasty was of Central Asian origin most probably from Eastern Turkistan or from Badakhshan.  A number of rulers succeeded one after the other during the Raees dynasty and a few of them known in history of the area like Shah Nasir, Shah Tahir Raees, Shah Mahmood and Shah Abdul Qadir.  In the late period of Raees rule its power greatly weakened due to internecine fights over succession which was taken advantage of by the Katoors.  While the Raees were busy fighting each other the Katoors mounted an attack on the ruling family with the help of other prominent tribes and took over the reigns of the state.  The prominent features of Raees rule were the unification of Upper Chitral and Lower Chitral into a single state, spread of Islam, introduction of Islamic system, introduction of taxation and a good administrative system.  The dynasty ruled over Chitral till 1590 uninterruptedly when Muhtaram Shah Kator overthrew Shah Mehmood Raees in 1590.  However Shah Mehmood Raees regained his power in 1630. The Raees rule lingered on till 1698 when Shah Alam Katoor replaced the last Raees ruler Shah Abdul Qadir Raees who ruled from 1697-98. Syed Misri Shah Rizvi (Sindhi: سيد مصری شاه‎ ), Syed Misri Shah Imam (1840-1905) also known as King of Kaafi (Poetry).  He was a saint and a sufi poet.  He was born in Nasarpur, Sindh and lived most of his life in Nasarpur after travelling throughout the world to spread the word of Islam and Sufism.  His poetry is divided into seven different languages, and most of them are in Sindhi.  The others are Hindi, Persian and few others as well.  The annual Urs of Syed Misri Shah takes place in Safar (Islamic Month) at Nasarpur, Sindh, Pakistan. Shah Makhdum (Bengali: শাহ মখদুম ; died 1313 CE), born Abdul-Quddus Jalaluddin and also known as Rupos, is a Sufi Muslim figure in Bangladesh.  He is associated with the spread of Islam into the Varendra region of Bengal by the preaching method of Sufism.  He arrived in Bengal with his elder brother Syed Ahmed (Miran Shah) from Baghdad in 1287 CE.  Shah Makhdum Airport of Rajshahi, is named after him. Shah Makhdum Airport (IATA: RJH, ICAO: VGRJ) is a domestic airport serving Rajshahi, the principal city of the Rajshahi Division in Bangladesh. Sultan Abu Syahid Shah ibni Almarhum Sultan Muhammad Shah (died 1446) whose real name was Raja Ibrahim, was the 4th Sultan of Malacca from 1444 to 1446.  Despite the fact that Malacca was a Muslim kingdom, Syahid Shah was a practising Hindu. He styled himself as Raja Sri Parameswara Dewa Shah.  Appointment of Raja Ibrahim as 4th Sultan of Malacca was unpopular because he was too young and raw.  His predecessor, Sultan Muhammad Shah had alleged saw the Islamic prophet Muhammad in his dream and converted to Islam.  Syahid Shah on taking a Hindu title represented a traditionalist reaction in Malacca against Islam, the new religion.  He reigned for only seventeen months, after which he was murdered in a plot allegedly conspired by the Tamil Muslim Bendahara (Prime Minister), (Datuk Seri Nara Diraja Tun Ali), Raja Kassim, son of Muhammad Shah, Tun Perpatih Sedang and Datuk Bendahara Seri Amar Diraja.  Syahid Shah was then given the title Abu Syahid which means the Martyred King. Makhdum Shah Daulah Shahid was a Fourteenth Century Muslim saint recognized for his preaching of Islam in northern India.  He was martyred at Shahjadpur in Sirajganj District, Rajshahi District in what is now northwestern Bangladesh. Shah Paran (Arabic: شاه فرحان‎ ‎ , Bengali: শাহ পরান , Sylheti: ꠡꠣꠢ ꠙꠞꠣꠘ ) was an Islamic saint and Sufi of the Jalalia section of the Suhrawardiyya order.  He was the nephew of Shah Jalal and was born in Hadramaut, Yemen, and accompanied his uncle, Shah Jalal, with whom he arrived in India in 1303 AD.  He is associated with the spread of Islam in the region what is now Bangladesh.  He took part in the expedition of Sylhet which was led by Shah Jalal.  After the conquest of Sylhet he established a khanqah at Khadim Nagar in Dakshingarh Pargana, about 7 km away from Sylhet town.  He played a significant role in propagating Islam and establishing Muslim rule in what is now the Sylhet region. Islam Khan V (died 21 Safar 1147 AH / 1734 AD) was one of the prominent Emir and nobleman during the Mughal empire.  He was entitled 'Islam Khan' and ‘Barkhurdar Khan’ by Emperor Bahadur Shah I and remained in many important posts during the successive rules of Bahadur Shah I, Jahandar Shah, Farrukhsiyar, Rafi ud Darajat, Shah Jahan II and Muhammad Shah. Madrasa Rahimiyya was an Islamic teaching centre located in Delhi.  It was founded by Shah Abdur Rahim during 18th century.  Shah Abdur Rahim was the father of Shah Waliullah.  After the death of Shah Abdur Rahim in 1718 Shah Waliullah Dehlawi started teaching at the Madrassa.  It played a leading role in teaching Islam to other people.  Later, when Shah Wali Ullah died, his sons Shah Rafi and Shah Abdul Qader began teaching here.
Answer: Varendra region of Bengal