Karnataka
Basic demographic estimates:2019, 2020, 2021 population: 65798, 66322, 66845 × 103 (MoHFW (p160ff))
Yearly population growth: 0.79%
2018/19 crude death rate: 6.3, 6.2 (SRS 2018 (Table 1), SRS 2019 (Table 8))
CRS-SRS level of death registration (2015, 2016, 2017, 2018, 2019): 93.5%, 97.5%, 100%, 100%, 100% (CRS 2019, Statement 21)
NFHS-5 level of death registration: 86.6% (NFHS-5 national report, Table 2.19)
NFHS-5: factsheet, full state report
Mortality report :
Whole state (2021-08-22): factsheet on all cause mortality in Karnataka
Mortality data :
Civil registration data monthly from Jan 2015 to May 2021
Civil registration data Bengaluru monthly from Jan 2019 to May 2021
Articles on mortality:
The News Minute (2021-06-16). [whole state] [CRS data]. Jan 1 to June 15, 2021 compared to the same period during 2018 and during 2019.
The Hindu (2020-09-03). [Bengaluru][CRS data]. Jan to July, 2020 compared to the same period in 2019 (49,135 in 2020, compared to 37,001 in 2019: excess: 12134).
The News Minute (2021-06-16). [Bengaluru][CRS data]. Jan 1 to June 15 2021, compared to roughly the same period during 2018 and 2019, although there is a possible mismatch in locations.
COVID-19:
Cases and recorded deaths (from covid19india.org and covid19bharat.org):
All time:

Recent:

Expected COVID-19 IFR (O'Driscoll et al, Levin et al): 0.2784%, 0.4693%.
COVID-19 seroprevalence surveys and analysis :
1. Whole state. CPHS survey.
- Description: Survey across 20 of 30 districts. Relatively small sample from CPHS survey. Possible biases.
- Dates: June 15 to August 29, 2020
- Headline: 46.7% (44.1% in rural areas, 53.8% in urban areas)
- Links: medrxiv (technical)
- Description: Serosurvey combined with RT-PCR testing to assess total prevalence
- Dates: September 3 to 16 2020
- Headline: 16.4% seropositivity, 12.7% active infection, estimated prevalence: 27.3%
- Links: medrxiv (technical)
- Description: data extracted from supplementary information of report on third national serosurvey
- Dates: Aug 18 to Sept 20 2020
- Headline: 14.45% (Bangalore: 18.6%, Chitradurga: 6.0%, Gulbarga: 18.9%)
- Links: Int J Infect Dis (technical)
- Description: data extracted from supplementary information of report on third national serosurvey
- Dates: Dec 18, 2020 to Jan 6, 2021
- Headline: 28.08% (Bangalore: 34.0%, Chitradurga: 23.3%, Gulbarga: 27.3%)
- Links: Int J Infect Dis (technical)