There were 23,395 persons in the age range of 0 to 6 years. The Scheduled Castes numbered 50,666 (26.55%) and the Scheduled Tribes numbered 79 (0.04%). According to the 2001 Census of India, the Diamond Harbour II CD block had a total population of 165,154, out of which 84,575 were males and 80,579 were females. The Diamond Harbour II CD block registered a population growth of 14.79 per cent during the 1991-2001 decade. Decadal growth for the South 24 Parganas district was 20.89 per cent. Decadal growth in West Bengal was 17.84 per cent. The Scheduled Castes at 46,965 formed around one-third the population. The Scheduled Tribes numbered 1,848. Census Town in the Diamond Harbour II CD block (2011 census figures in brackets): Patdaha (4,993). Large villages (with 4,000+ population) in the Diamond Harbour II CD block (2011 census figures in brackets): Bishra (4,274), Nainan (5,144), Gopalpur (4,118), Ramnagar (4,655), Nurpur (7,527), Bhushna (4,147), Kamarpol (10,880), Chandnagar (4,156) and Patra (8,310). Other villages in the Diamond Harbour II CD block include (2011 census figures in brackets): Raychak (1,243), Mathur (2,536), Khorda (2,696) and Bhaduria (3,709).Parasurampur(664) According to the 2011 census, the total number of literate persons in the Diamond Harbour II CD block was 128,756 (76.91% of the population over 6 years) out of which males numbered 70,196 (82.00% of the male population over 6 years) and females numbered 58,560 (71.59% of the female population over 6 years). The gender disparity (the difference between female and male literacy rates) was 10.40%. According to the 2011 Census of India, literacy in the South 24 Parganas district was 77.51 Literacy in West Bengal was 77.08% in 2011. Literacy in India in 2011 was 74.04%. According to the 2001 Census of India, Diamond Harbour II CD block had a total literacy of 70.75 per cent for the 6+ age group.