The 15th Census of India was conducted in 2011 under C. Chandramouli as Census Commissioner. It was divided into two phases: House Listing and Housing Census, followed by Population Enumeration.
- Total Population: 121,08,54,977 (121.08 crores), consisting of 51.54% males and 48.46% females.
- Decadal Growth Rate: 17.7% (compared to 21.5% in 1991-2001).
- Urban-Rural Breakup: Rural population is 68.84% (83.37 crores) and Urban population is 31.16% (37.71 crores).
- Least Populous State: Sikkim (6.1 lakh).
- Least Populous UT: Lakshadweep (64,473).