Prozo, an online marketplace for buying and selling study material, has raised its Pre-Series A round of funding from a London-based venture capital firm and two affluent individuals. Prozo claims to be a search engine where students can buy books, e-learning content, coaching material and personal notes.  As per its website, about 200 publishers and 60 digital content producers such as Aakash Institute, CrackVerbal, Brilliant Tutorials, Plancess, learnpedia, Meritnation and Toppr.com are selling on its platform.