The ICMR – INDIAB study reported that the overall prevalence of diabetes in all 15 states of India was 7.3% in 2015 (95% CI 7.0–7.5) (Anjana et al., 2017). The more recent National Diabetes and Diabetic Retinopathy Survey of India 2015-2019 reported the prevalence of diabetes in surveyed population (63,000 aged 50 and above in 21 districts) to be 11.8% (All India Institute of Medical Sciences (AIIMS, 2019)).

References:

All India Institute of Medical Sciences. National Diabetes and Diabetic Retinopathy Survey of India 2015-2019. n.d. National Program for Control of Blindness and Visual Impairment, Directorate General of Health Services, Ministry of Health and Family Welfare, Government of India. Available from: https://npcbvi.gov.in/writeReadData/mainlinkFile/File342.pdf

Anjana, R. M., Deepa, M., Pradeepa, R., Mahanta, J., Narain, K., Das, H. K., …. Bhansali, A. (2017). Prevalence of diabetes and prediabetes in 15 states of India: results from the ICMR–INDIAB population-based cross-sectional study. The lancet Diabetes & endocrinology, 5(8), 585-596. https://doi.org/10.1016/S2213-8587(17)30174-2