However, Ranbir Singh, a cultural historian and formerly co-convenor of the state chapter of INTACH, functioning from Rohtak, has documented extensively in the last 25 years the art and architectural heritage not only of the Rohtak District but also the entire Haryana on his own. He has a large collection of photographs of the heritage properties besides documenting history of the heritage value buildings, historical villages and towns of the district. Early in 2009, Singh completed detailed profiles of about 40 heritage value properties both in private as well as public domain with photographs and handed over the documents to the convener of the Haryana chapter of INTACH. This documentation, appreciated both by architects as well as art historians, has also been placed for reference in the archives in the central library of INTACH Headquarters located at Lodi Estate, New Delhi.