The mid-19th century marks a watershed in the electoral processes of Goa. This was due to the extended suffrage in force after 1851 in Goa as in the rest of the Portuguese dominions. It was the outcome of the fall of a domineering figure in Portuguese history, a radical right wing supporter and the Premier of Portugal, António Bernado da Costa Cabral from power in 1851, who attempted to keep at bay populist elements from administration, during his regime. His ouster at the hands of the more liberal Duke of Saldanha was characterised by the implementation of new reforms which extended franchise for more than two decades. Firstly elections ceased to be indirect and voters could directly participate in elections, leading to a significant increase in number of voters who directly participated, unlike earlier. Secondly, the reduction in the taxation slab to qualify as voters was also responsible or an increase in the number of voters in Goa. This period, seen as the phase of regeneration allowed a wider section of people to vote in Goa across caste and professional lines. Therefore, the period from 1852 to 1895, is marked by an increasing propensity of populist identities besides the elite section to participate in the elections of Goa namely; proprietário (landlord), carpinteiro (carpenter), varzeiro (agriculturist), pescador (fisherman), pedreiro (mason), louvrador (toddy tapper), distilador (distiller), mainato (washer man), fiscal (supervisor), botiqueiro (shopkeeper), paneleiro (pot-maker), juiz de paz (district judge), emfermeiro (male nurse), taberneiro (inn-keeper), julgador (judge), cozinheiro (cook).
According to the Decree of 1852, there was only one category of voters. They were required to possess a gross income of 100$000 réis. The Electoral Law of May 1878, yet another radical regulation, was the result of a protracted debate in the parliament between the political parties in Portugal spanning for over a decade. The groups with leftist leanings, especially the reformist party (later Progressistas) of Portugal favoured enlargement of franchise and reduction of royal privileges. This law was sought to be tailor-made to suit the plummeting financial fortunes of Portugal. Its provisions which considerably relaxed the demands on voting, revolutionised voting patterns in Goa as it did in Portugal for more than fifteen years. More importantly, the head of the family (chefe da família) was also conceded the right to vote, without demands on literacy. The statistics of voters depicted below show an increase of voters from 1860 to 1894. In the early 1860s, the voter statistics in Goa was over 6000. In the year 1865, it decreased considerable to 3,708 due to the caste rivalry and political tension in the circle of Salcette and the nullification of election in this circle. There was a great leap forward in the number of voters in the year 1878 as it reached 17,469. Evidence shows that most of the voters registered had obtained the prerogative by virtue of being the Heads of Families, and only a few by their virtue of literacy.
This legislation stressed upon literacy (saber ler e escrever), a stipulated income of 100$000 réis and 21 years of age for the general voter. The subsequent regulation of March 1895, a move spearheaded by the Regeneration Party (Partido Regeneradores) in Portugal, adopted a retrograde move of disfranchising voters arguably on the ground that literacy was essential in voting. This law stressed upon factors of literacy and taxation to 5$00 réis and the same was retained in the electoral legislations of 1899 and in 1901.
During the 20th century, money continued to play a role in the elections. The voters were the educated and moneyed lot. In 1915, franchise was extended to military men, who had registered themselves as voters. However, the number of voters during the republican period decreased remarkably and it could be attributed to the subtle and implicit restrictions on the qualifications to be a voter. Further, the disinterest in elections during the regime of Salazar after 1945 and interference from the government in elections also contributed to this downward trend in the number of voters.
In Portugal and her colonies, most legislations of the 19th century allowed a voter to participate in elections at the age of 25 years. However, it was relaxed to 21 years under certain exceptional cases to men who were married and completed a course in higher education such as the lyceum or acquired a degree in education. In 1878, the voting age was reduced to 21 years and remained as such throughout the Portuguese period in Goa. The election of 1892 shows that the youngest married voter was registered at 21 years of age. In 1911, it was reiterated that a voter was allowed to vote at 21 years. This requirement was retained till 1961. Similar rules on age were applicable to a candidate contesting the elections. It was required that a deputado completed 25 years, to be considered eligible for this position. But the age was relaxed at 21 years under certain circumstances.