Ankylosing spondylitis is a progressive inflammatory disease of the spine and large joints producing ankylosis and deformity in which evaluation of the disease activity is quite difficult. Bath Ankylosing Spondylitis Daily Activity Index (BASDAI) is a previously validated, self-administered index; which in this study is being tried to correlate with some radiological interventions (Bath Ankylosing Spondylitis Radiology Index). The study comprised 15 ankylosing spondylitis patients (3 women, 12 men) the ages of whom ranged between 21 and 62. All 15 patients had recent radiographs and correlations between the BASDAI and were expressed using the Spearman's correlation coefficient. BASDAI scores although not correlating with the total radiological scores, did positively correlate with the cervical radiological scores and importantly negatively with the sacroiliacs'. The hip joints' and the lumbar spine radiological scores don't seem to correlate with the BASDAI scorings. The BASDAI being a convenient method in the evaluation of a difficultly manuplated disease; AS, is promising.