Nirjhari Sinha is the Director of Pravda Media Foundation, the parent company of Alt News and manages the operations of the company. She's a founder-member of a Gujarat-based civil liberties organisation Jan Sangharsh Manch. She's a former scientist with Physical Research Laboratory, Ahmedabad, and specialised in analysing lunar and meteorite samples to study cosmic rays and early solar system.
Worked in Physical Research Laboratory, Ahmedabad, as a Scientist on various research subjects including dating of Zircon from Precambrian rocks, Isotopic study of Ca-Al inclusions and chondrules in meteorites, Meteor photography and Chemical enhancements in sediments of Indian peninsula.