For river rejuvenation, some works are done with immediate impact and some with long term impact. Raman is doing three types of work in the field of river rejuvenation - groundwork, research work and policy work.
Raman started his efforts to change the feeling of despair towards small rivers in the country into hope in the year 2006 by doing a technical study of the Hindon River and doing a trek on it. Based on ground experiences of river trekking and technical study, a map of Hindon and its tributaries was prepared, which is used today at all government and non-government levels. During this period, the origins and flow paths of the Hindon and all its tributaries Kali West, Krishna, Nagdeh, Pavdhoi, Chhajjewali, Peerwali, Barsani, Sapolia, Peerwali and Andhakundi were discovered.