By the middle of the eighteenth century, the number of christians increased in the coastal Karnataka both by way of evangelization by foreign missionaries particularly from Paris and by immigration of converted Christians from Goa. but on the 21st of July,1773 Pope clement XIV Proclaimed 'Dominus Ac Redemtor' by which the activities of the Jasuits were stayed and they were arrested and deported to Lisbon. The action of the Pope in this regard is a blackspot in the history of the Catholic Church.
With the reduction in the number of missionaries, the existing missionaries started producing native priests. Besides they also trained people in order to proclaim faith and teach prayers. Such trained people were called 'Upadeshis'. In order to achieve speedy evangelisation they used to place 'Upadeshis' in different villages and when a good number of people got ready for conversion, they used to send a priest in order to Baptise them and to provide for their religious needs. For this purpose they were building chapels and a parochial houses for residential priests. Each priest was in charge of several villages around the chapel and each village was provided with a native 'Upadeshi'.
In 1776, as per the directions from Rome the task of evangelisation in Karnataka was entrusted to the Foreign Missionary Organisation (M.E.P) of Paris .On 18-09-1777 in the Conference held in Paris the Society of Jesus ceremoniously merged with the Foreign Missionary Organisation of Paris. As a result, in 1777 itself a seminary named 'The College General' was established in Pondichery which was the headquarters of the Karnataka Mission with the specific objective of training the natives for priesthood.
From 1783 to 1799 for a period of sixteen years the Christians of Karnataka, the Nayers of Karnataka and the Brahmins all over had to face a serious religious inquisition on account of the religious fanaticism of Tipu Sultan.
As a first step of religious inquisition Tipu Sultan exiled all the religious priests from his province with the result that between 1790 and 1799 there was not a single priest in his province. The christians became 'the sheep without the shepherd'. As such a good number of Christians fled to different places outside his province. Out of those who remained some were forcibly converted into Muslim religion, but a few managed to remain christians by secretly practising christianty, whereas those who were caught but reluctant to give up their faith had to face cruel punishment-----some got their noses cut-off, some men were given to the Muslim women who had lost their husbands and the women were offered to the muslim soldiers.
TIpu Sultan started destroying the Christians churches. It is to be noted that all the churches in his province except three were razed to the ground. These churches were- 1.Kirangur church 2. Gadenahalli church ( near Hassan) and 3. Blockpalli church (Banglore). It is interesting to note that the church of Gadenahalli was rescued by a Muslim who stocked cotton bales inside the church so as to make it appear like a godown.
One of the important churches destroyed by Tipu Sultan in South Kanara was the church of Mount Mary at Mangalore.The parish priest named Fr. Joachim Miranda fled to Veraploy of Kerala along with a few priests and 15 seminarian.
Among the immigrants from Goa the Konkani Brahmans ( both Gouda Saraswat Community and Bhamun Christians) have a fair complexion. It is probable that they are the descendants of the Northern Indian Brahmans that settled in Goa and had connection with fair women belonging to no recognised caste. Since Goa had properous trade with the western countries it attracted to its shores a cosmopolitan population which must have given rise to a mixed class of people with fair colour. Apart from this it is beleived that in the christian population of Kanara there is a strain of European blood passed down from the Portuguese who during the sixteenth and the seventeenth centuries settled along the coast for trade and other purposes. This strain of European blood may be traced in a small minority of the people who form a distinct community.In Goa they go by the name of the 'mesticos' (mixed class). They are the progeny of alliances between Portuguese officers, soldiers and merchants and the Indian women which were authorised by the Portuguese government and encouraged by the clergy, the women selected being generally of the higher castes. Apart from this minority the Konkani Christians of Kanara may be said to be purely Indians except in religion and religious practices and in being divided into castes and wearing dress like the Hindus. They, no doubt, bear Portuguese surnames which were given to their ancestors at the time of the Christening ceremony after the surname of their God-parents. In fact, this has been the case with all the converted christians who bear the Portuguese surnames in all records but generally known by their original Hindu surnames.
It is well-known that the Gouda Saraswat Brahmins are distinguished by their 'paik' names like Prabhu, Shenoy, Kamath, Pai, etc. These paik names are retained by them to show their ancestory. When the G.S Brahmins were converted to Christianity by the Portuguese their paik names were changed to the names of their God-fathers at the time of their Baptism. But side by side the retained their paik names also. Thus the Lobos are Prabhus, the Pintos are Kamanths, The Lasrados are Shenoys and the Albuquerques are Pais. There is no paik name for the Mudarths probably because they were called Mudras earlier. Yet they are also known as 'Porobs' . Whenever their surname is changed into Desouza, they are known as Mudorths. All the Desouzas amongst the Bamun Christians of Kanara do not belong to the same clan. There are three clans namely the Gidoli, the Nathnoli, and the Mudorth. At present about 90% of the Mudarthas have changed their surname into Desouza, some of them who belong to the new generations ven do not know that they are Mudorths.
The Konkani Christians of Coastal Karnataka are diveded into classes or castes corresponding to their Hindu castes and accordingly the Mudarthas being Porob (Prabhu) belong to Bhamun ( Brahman) sect. Inter -marriages between these castes are not forbidden, but rarely take place No Konkani Christian fells himself polluted by dining with a member of lower caste; but members of different castes do not habitually meet for dining on any ocasion. Like other Konkani Christians the Mudarthas used to bear only Christians names derived from western countries, but after independance there has beeen a fashion of giving Indian names.
In the History of the Diocese of Mangalore there is a reference made to the curious tradition among some local Christians regarding the origin of the Konkani christians. It would appear that St. Francis Xavier separated the Konkani concubines from the Portuguese in Goa and had them deported to Kanara to remove both parties from the occasion of sin with result the Konkani concubines seemed to have swelled the number of the temple women called Naikins and such other classes. They were settled in Ankola and Karwar and other towns of North Kanara who trace their homes to Goa and who now find their way in large numbers to Mumbai.
Another tradition referred to in the History of the Diocese of Mangalore is that the convicts of Bijapur state were first sent to Goa and then to Kanara and that the Konkani Christians are their descendants.But this version cannot be believed in view of the fact that there is not even a clue to show that they were ever converted to christianity . In the words of Casmir D'souza (District Registrar) 'It would be just as ridiculous to assert that the citizens of the common wealth of Australia are the descendants of the 'Sydney Ducks' as to maintain that the Christians of Kanara are the offspring of the people who left Bijapur or Goa for their country's good'.
There was greater religious freedom in Karnataka and all over the country during the 19th century and the first half of the 20th century under the British rule . Being shrewd politicians ans good businessmen, the British did not interfere with the religious affairs of the people , but permitted the European Missionaries to proclaim the Word of God and to practice voluntary evangelisation.