During the period of 110 years from 1901-2011, population of Punjab has recorded about four-fold increase from 75 lakh in 1901 to 277 lakh in 2011 and the state's population grew by 16 lakh during 1901-51 and by 152 lakh during 1951-2001.
On the eve of World Population Day, Seema Jain, Joint Secretary, Ministry of Home Affairs, and Director Census, Punjab released the 'Primary Census Abstract (PCA) - Data Highlights of Punjab, providing final data of the 2011 census.
The decade of 2001-11 has added another 34 lakh at a decadal growth rate of 13.9 per cent which is the lowest ever since 1961, the data said.
Highlighting some salient features of the data, Jain said Punjab ranks 15th in terms of population and accounts for 2.3 per cent of total population of India and Ludhiana, with a population of 34.99 lakh, is the most populous district.
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Barnala, with a population of 5.96 lakh, is the least populous district in Punjab.
Punjab is experiencing rapid urbanisation as the increase in urban population at 25.9 per cent is more than thrice the increase of rural population by 7.8 per cent, the date says.