Henry Waterfield, (1875), Memorandum on the Census of British India 1871-72, London, Eyre and Spottiswoode, p.17, mention about the “Religious Demography of Punjab in 1871-72” that;
In dealing with the population of the Punjab, it is necessary to take into consideration a third religion, that of the Sikhs, who in this province form an important element, though in the others they are so few as to be merely reckoned among the higher castes of the Hindoos.
In every 100 persons in the Punjab, there are, on an average, 53 Mahomedans, 34 Hindoos, and 6 Sikhs.
Total Population of Punjab = 17,611,498
Buddhists and Jains, 36,190
Christians Others, 22,154
Religion not known, 945,919
Percentage of the Total Population of Punjab.
Religion not known, 5.37%.
As might be expected, the Hindoos are most numerous in the more southern divisions bordering on the North-West Provinces; in Delhi, Hissar, Umballa, and Jullundhur, they comprise 68, 74, 56, and 58% of the people, while in Amritsar they only form 24%., in Mooltan 17, in Lahore 15, in Rawulpindee 10, in the Derajat 11, and in Peshawar not more than 5%.
The returns vary, however, some comprising the sweeper castes among Hindoos, while some, treating them as outcasts, include them in the "other" population.
The Mahomedans muster from 21 to 30%, in the four lower divisions, but in Amritsar, Lahore, and Multan they come up to 51, 57, and 65%.; in Rawulpindee and the Derajat they have 86 and 87, and in Peshawar no less than 93% of the population.
The stronghold of the Sikhs is the country between the rivers Ravi and Sutlej, including the central districts of Lahore where they form 17, Amritsar where they are 13% of the people, Umballa where they amount to 9, and Jullundhur where they are 8%.; in the other districts they range from 3 to 1%.