Domestic water includes bathing, drinking, cooking, flushing, washing, etc. As per the Bangalore Water Supply and Sewage Board (http://bwssb.gov.in), water  demand per person in Bangalore city is nearly 150 to 200 lpcd (liters per capita per day) but average supply is about 100 – 125 lpcd. Based on the population census (Bangalore district gazetteer - http://gazetteer.kar.nic.in/, District at a glance - http://bangaloreurban.nic.in/, Census of India - censusindia.gov.in, etc.) of 2001 and 2011, population is projected for the year 2016 and, 2021 (Figure 6.1). Population for the year 2016 in Bangalore would be 104.39 lakh. Population density at the same rate as population growth in Bangalore, has increased from 57.84 (in 1991) to 79.21 (in 2001) and 117.65 (in 2011) persons per hectare.  Population density in 2016 would be ~147.2 persons per hectare. Ward wise population density is depicted in Figure 6.2 during 1991 to 2021. Spatial analyses indicates, that the population core area of Bangalore is denser and is increasing at a higher rate.

Figure 6.1: Population dynamics in Bangalore since 1871 to 2021.

Table 6.1: Domestic water demands at various supply rates

Figure 6.2: Ward wise population density of Bangalore

Water demand for domestic needs in Bangalore is listed in table 6.1 (at various water consumption levels). Domestic demand of Water (at 150 lpcd) is 20.05 TMC per year (1573 MLD). Figure 6.3 depicts water demand at ward level (MLD: Million Liters per Day).

Figure 6.3: Domestic water requirements at ward level (Million liters per day)