The visually impaired learners have to face many access challenges in getting education with respect to content, teaching-learning and assessment. Astronomy is one of such fields which is highly inaccessible for the VI learners due to its abstract and visual nature. But if appropriate instructional interventions are made then even the VI learners can also access the astronomy content effectively. This study presents such an experiment in which the VI learners were given exposure to astronomy learning through the instructional intervention based on technology based inquiry learning approach (TBIA).The statistical analysis proved the usefulness of TBIA approach over traditional approach of teaching astronomy to VI learners.