A video of a lecturer at the reputed Banaras Hindu University teaching students how to manufacture ‘upala’ has surfaced on Twitter (cow dung cakes). Notably, BHU recently hosted a workshop in which Prof Kaushal Kishore Mishra, head of the social science faculty, taught students how to manufacture ‘upala’ (cow dung cakes). Prof Kaushal demonstrates how to produce cow dung cakes