The  ICMR-INDIAB 2015 study examining prevalence of obesity across 3 states (Tamil Nadu, Maharashtra, Jharkhand) and one UT (Chandigarh) reported obesity and abdominal obesity prevalence in India to vary between 11.8% to 31.3% and 16.9% to 36.3% respectively (Pradeepa et al., 2015). A more recent study (Venkatrao et al., 2021) examining data of around 1 lakh participants from phase 1 of a nationwide randomised cluster survey (Niyantrita Madhumeha Bharata), revealed the overall prevalence of obesity to be 40.3% in India, with wide variations across different regions of the country.

References:

Pradeepa, R., Anjana, R. M., Joshi, S. R., Bhansali, A., Deepa, M., Joshi, P. P., & Group, the I.-I. C. S. (2015). Prevalence of generalized & abdominal obesity in urban & rural India- the ICMR – INDIAB Study (Phase-I) [ICMR – INDIAB-3]. The Indian Journal of Medical Research, 142(2), 139. https://doi.org/10.4103/0971-5916.164234

Venkatrao, M., Nagarathna, R., Majumdar, V., Patil, S. S., Rathi, S., & Nagendra, H. (2021). Prevalence of Obesity in India and Its Neurological Implications: A Multifactor Analysis of a Nationwide Cross-Sectional Study. Annals of Neurosciences, 27(3-4), 153-161. https://doi.org/10.1177/0972753120987465