[1] Efforts are on to get the first unit of the NTPC Limited’s North Karanpura Thermal Power Station (3x660 MW), ready in 2021.

[2]North Karanpura Coalfield of Central Coalfields Limited, spread over 1,230 square kilometres (470 sq mi) in the southern part of the district, with spill over to neighbouring districts, and having coal reserves of 14 billion tonnes is among the biggest in India.

According to the 2011 Census of India, Simaria Kalan (location code 349347) had a total population of 2,412, of which 1,290 (53%) were males and 1,122 (47%) were females.

The total number of literate persons in Simaria Kalan was 1,737 (84.48% of the population over 6 years).

Affiliated to the Vinoba Bhave University, it offers honours courses in Hindi, Urdu, English, history, geography, philosophy, political science, sociology, economics and anthropology.