Dr. M. Vijaynunni (26–29 August 1998). "Planning for the 2001 Census of India Based on the 1991 Census"(PDF). 18th Population Census Conference. Honolulu, Hawaii, USA: Association of National Census and Statistics Directors of America, Asia, and the Pacific. Archived from the original(PDF) on 19 November 2008. பார்க்கப்பட்ட நாள் 2013-11-08.
"Budget data"(PDF). indiabudget.nic.in. Archived from the original(PDF) on 2008-12-19. பார்க்கப்பட்ட நாள் 2019-09-02. {{cite web}}: Unknown parameter |= ignored (help)
Dr. M. Vijaynunni (26–29 August 1998). "Planning for the 2001 Census of India Based on the 1991 Census"(PDF). 18th Population Census Conference. Honolulu, Hawaii, USA: Association of National Census and Statistics Directors of America, Asia, and the Pacific. Archived from the original(PDF) on 19 November 2008. பார்க்கப்பட்ட நாள் 2013-11-08.
"Budget data"(PDF). indiabudget.nic.in. Archived from the original(PDF) on 2008-12-19. பார்க்கப்பட்ட நாள் 2019-09-02. {{cite web}}: Unknown parameter |= ignored (help)