M Vellaiyammal, a visually challenged student pursuing her bachelors degree in history at a city college, said the price of braille text-books was often prohibitive.
"I request my classmates (who are not visually challenged) to read out from usual textbooks, record it and listen to it again and again to understand the subjects," she told PTI.
Also, several subjects like comparative politics were just not available in braille editions, she said.
Students like Vellaiyammal, inmates of a hostel here and studying at various institutions, including State-run Queen Marys College, are from socially and economically backward sections of society and find it extremely hard to buy such high priced books.
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V Sankarlal, founder of a voluntary organisation, MRL Anbargal Nesa Karangal, that helps such students, said, "We welcome help, be it braille books or for other academic needs of visually impaired students."
Asked about the cost of braille books being on the higher side, programme officer of Indian Association for the Blind, R Tamilselvi agreed that it was a fact.
Printing a single page of a braille book with features like embossing to identify letters would consume about two to three pages used in a normal book, she said, adding the cost would obviously be on the higher side.
With the support of donors and patrons, the cost could be brought down, she said. "We are working to reduce the cost, we need support for it," the IAB official said.
It was possible to bring out braille editions under all titles, but the cost was an impediment, she said, adding it was possible with support.
About 500 titles covering a range of topics, including literature, history and books for competitive exams have already been published by IAB in braille.
On the cost of braille books, Booksellers and Publishers Association of South India Executive member R M Meyyappan said, "The publishing industry as a whole is facing a lot of issues, especially after implementation of the GST regime and demonetisation."
"In the ongoing book fair which commenced on January 10 and scheduled to end today 708 stalls featuring 15 lakh titles have been set up and out of which two stalls are for the visually impaired offering braille books," he said.