Consider the decadal Census data given below: Decadal Population (in millions) Population 1961 10.7 1971 14.3 1981 16.2 1991 18.9 The above data refer to which one of the ‘Population by Religion’ Groups?

The provided data corresponds to the Christian population in India during those decades. According to the official Census records, the Christian population was approximately 10.7 million in 1961, 14.2 million in 1971, 16.1 million in 1981, and 19.6 million in 1991. While the figures in the question are slightly rounded, they align closely with the growth trajectory of the Christian community. In contrast, the Sikh population was higher, reaching about 13 million by 1981, while the Jain and Buddhist populations were significantly lower than the 10 million mark during the 1960s and 1970s. Therefore, Christians are the only group that fits this specific demographic profile.