"The Agartala book fair was launched in 1981. Except for two years, it has been held annually. After New Delhi and Kolkata book fairs, Agartala book fair is the most popular book fair in India," Tripura Publishers' Guild Secretary Raghunath Sarkar told IANS. He said that the annual book fair has given a big boost to local publishing business with an average of 150 to 200 titles being published every year on the eve of the book fair. However, this year a record number of 400 titles are expected to be published.