In a milieu where science magazines do not exist, none addressing children, it is remarkable that Thulir continues to be published without a break for 20 years. Currently, Thulir has a circulation of more than 12000, and is estimated to reach nearly 50,000 children on account of multiple readerships. Of these nearly 8,000 reach small villages, Most of the copies are sold by TNSF's activists (largely schoolteachers) at the beginning of the month. They go around at the beginning of the month, selling issues of Thulir, often to children who team up and split the cost. Currently, Thulir's annual subscription is Rs 75, and single copies are priced at Rs 7 for an issue.