The Longitudinal Aging Study in India (LASI) is a nationally representative survey of older persons in India, with emphasis on their health, social situations, and economic circumstances. It will provide a foundation for innovative, rigorous, and multidisciplinary studies of aging in India that will inform policy and advance scientific knowledge. Its goal is to provide data harmonized with the Health and Retirement Study (HRS) and its sister studies around the world. We have successfully completed LASI pilot studies (R21AG032572, R21AG034443, and R03AG043052), using computer-assisted face-to-face interviews of 1,683 individuals, including cognitive and physical performance tests, and dried blood spot (DBS) specimens. We have successfully released these anonymized data to the research community (

The LASI PI team includes Drs. David E. Bloom at the Harvard School of Public Health, P. Arokiasamy at the International Institute of Population Sciences, and Jinkook Lee at the University of Southern California. We were awarded a grant (R01AG042778) to develop and implement two waves of a full-scale, nationally representative panel study in India. Combined with funding from the Government of India, the LASI main-wave will enroll about 70,000 participants from a sample that is representative of the nation as well as all its states and union territories.

Download the pilot data, instrument, and documentation

Check back with us for the baseline data, instrument, and documentation (fieldwork will start September of 2015)



  • Longitudinal Aging Study In India. (2014)
    D. Bloom; P. Hu; P. Arokiasamy; A. Risbud; T. Sekher; S. Mohanty; V. Kale; C. Chien; J. Lee; J. O'Brien
    RAND Corporation
  • Gender disparity in late-life cognitive functioning in India: Findings from the Longitudinal Aging Study in India (LASI). (2014)
    J. Lee; R. Shih; K. Feeney; K. Langa
    The Journals of Gerontology Series. Volume: 69. Issue: 4. Page: 603-611.
  • Probabilistic Expectations in Developing Countries. (2014)
    A. Delavande
    Annual Review of Economics
  • Smoking, physical activity and healthy aging in India. (2014)
    J. Cramm; J. Lee
    Volume: 14. Issue: 1. Page: 526.
  • Living arrangement of elderly in India: who lives alone and what are the patterns of familial support. (2013)
    A. Jadhav; K. Sathyanarayana; S. Kumar; K. James.
  • Multiple Chronic Diseases and Co-Morbidities Among Older Adults in India: New Insights from Lasi Pilot, 2010. (2013)
    P. Arokiasamy; U. Uttamachary
  • Longitudinal Aging Study in India: Vision, Design, Implementation, and Preliminary Findings. (2012)
    J. Smith; M. Majmundar; P. Arokiasamy; D. Bloom; J. Lee; K. Feeney; M. Ozolins.
    National Academies Press
  • Social Networks, Family, and Care Giving Among Older Adults in India. (2012)
    J. Smith; M. Majmundar; L. Berkman; T. Sekher; B. Capistrant; Y. Zheng
    National Academies Press.
  • Preparing for Population Aging in Asia: Strengthening the Infrastructure for Science and Policy. (2012)
    J. Smith; M. Majmundar; J. Smith
    National Academies Press
  • Markers and drivers: Cardiovascular health of middle-aged and older Indians. (2011)
    J. Lee; P. Arokiasamy; A. Chandra; P. Hu; J. Liu; K. Feeney
    National Academy of Science.
  • Cognitive Health of Older Indians: Individual and Geographic Determinants of Female Disadvantage. (2011)
    J. Lee; R. Shih; K. Feeney; K. Langa
    RAND Corporation
  • Longitudinal aging study in India: vision, design, implementation, and some early results. (2011)
    P. Arokiasamy; D. Bloom; J. Lee; K. Feeney; M. Ozolins
    PGDA WP. Issue: 82
  • Harmonization of Cross-National Studies of Aging to the Health and Retirement Study. (2011)
    A. Delavande; J. Lee; J. Yoong
    RAND Working Paper;. Page: 315-333
  • Key themes in research on the demography of aging. (2010)
    R. Schoeni; M. Ofstedal
    Volume: 47. Issue: 1