Shaalaa.com

Shaalaa.com is an education website based in India that provides study material for school students, including answers to textbook questions, revision notes, sample papers and question banks organized by chapter. Content is organized by class, education board and subject, covering the kind of curricula taught in schools across India, from language arts to mathematics and science.

Its ads.txt file lists 348 ad systems used for programmatic advertising on the site. Sales houses named include AdPushup, Freestar, ESell, Next Millennium Media and Zero 1, among the companies involved in placing ad spots.