Marai Kalan
Marai Kalam is a census town in the Sadar, Hazaribagh CD block in the Hazaribagh Sadar subdivision of  the Hazaribagh district in the Indian state of Jharkhand. Geography

Location                         
Marai Kalan is located at . Demographics
According to the 2011 Census of India, Marai Kalan (location code 368579) had a total population of 10,447, of which 5,402 (52%) were males and 5,045 (48%) were females. Population in the age range 0–6 years was 157. The total number of literate persons in Marai Kalan was 7,230 (81.47% of the population over 6 years). Infrastructure
According to the District Census Handbook 2011, Hazaribagh, Marai Kalan covered an area of 2.77 km2. Among the civic amenities, it had 7 km roads with open drains, the protected water supply involved uncovered wells, hand pumps. It had 1,476 domestic electric connections, 14 road lighting points. Among the educational facilities it had 6 primary schools, 3 middle schools, the nearest secondary school, senior secondary school at Hazaribagh 4 km away. 