The data on population of the southern part of India and the total population of India during the 50 years from 1951 is given below
Population in crores (10 million)
State | 1951 | 1961 | 1971 | 1981 | 1991 | 2001 |
Andhra Pradesh | 3.11 | 3.68 | 4.35 | 5.36 | 6.65 | 7.62 |
Tamilnadu | 3.01 | 3.37 | 4.12 | 4.84 | 5.59 | 6.24 |
Karnataka | 1.94 | 2.36 | 2.93 | 3.71 | 4.50 | 5.29 |
Kerala | 1.35 | 1.69 | 2.13 | 2.54 | 2.91 | 3.18 |
Pondicherry | 0.03 | 0.04 | 0.05 | 0.06 | 0.08 | 0.10 |
Total – Southern India | 9.44 | 11.06 | 13.58 | 16.51 | 19.73 | 22.43 |
Total – India | 36.11 | 43.92 | 54.82 | 68.33 | 84.62 | 102.87 |
Share of Southern India in the total | 26.14 | 25.18 | 24.77 | 24.16 | 23.31 | 21.80 |
The above table shows that in 50 years since 1951, the share of the population of southern 4 states and Pondicherry declined by 4.34% from 26.14% to 21.80%. The decline in the share has steadily been increasing since 1961. It will not be surprising if the 2011 census figures show a decline of as much as 2%. If the trend continues, which is likely, in the next 50 years, the population of the southern states could much go below 15% (if there is not large scale migration from northern states to southern states) leading to marginalization of the southern states in Indian politics (though not in the economy).